Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
thanh di » thanh doi, thanh de, thanh do
thuc va » thuc vat, thuc dan, thuc day
van cam » van nam, van lam, van cau
dang ha » dong ha, dung ha, lang ha
cuu tre » cua tre, cau tren, cau treo
ha hoi » hoa hoi, ha noi, xa hoi
sanh y » anh y, hanh y, sach y
xuc va » duc va, tuc va, luc va
sinh y » sinh ly
di cuu » di cau, di cua, dinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so ((sanh y) OR (sinh y)) dang ha hoi. hieu van cam ((xuc va) or (thuc va)) thanh di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sanh y) OR (sinh y)) dang ha hoi. hieu van cam ((xuc va) OR (thuc va)) thanh di cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sanh y) OR (sinh y)) dang ha hoi. hieu van cam ((xuc va) or (thuc va)) thanh di cuu tre".
• Adding a wildcard symbol may retrieve word variants: so ((sanh y) OR (sinh y)) dang ha hoi. hieu van cam ((xuc va) or (thuc va)) thanh di cuu tre*.