| Tips: |
| irrigat* (finds
records with words Irrigation, Irrigated, Irrigating, etc) |
| irrigation
management (finds records with BOTH words in
that order only) |
| irrigation & management (finds
records with BOTH words in any order) |
| Sri
Lanka/India (finds
records with EITHER or BOTH words) |
| microirrigation ! India (finds
records with word “Microirrigation” BUT NOT “India”) |
