Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh va » hang va, hanh vi
thuc va » thuc dan, thuc day
van cam » van nam, van lam, van cau
san thu » san thuc, van thu, lan thu
lang xa » lang ha, dang xay, lang van
san phu » san pham
cuu tre » cua tre, cau tren, cau treo
va cuu » va cau, va chu, va huu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuat ((san thu) OR (san phu)) lang xa hoi. hieu van cam ((thuc va) or (thuc vat)) hanh va cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat ((san thu) OR (san phu)) lang xa hoi. hieu van cam ((thuc va) OR (thuc vat)) hanh va cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((san thu) OR (san phu)) lang xa hoi. hieu van cam ((thuc va) or (thuc vat)) hanh va cuu tre".
• Adding a wildcard symbol may retrieve word variants: thuat ((san thu) OR (san phu)) lang xa hoi. hieu van cam ((thuc va) or (thuc vat)) hanh va cuu tre*.