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

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 dong ha hoi. hieu van lam ((((xuc va) or (tuc va))) or (thuc va)) thanh di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh y dong ha hoi. hieu van lam ((((xuc va) OR (tuc va))) OR (thuc va)) thanh di cuu tre.
• Adding a wildcard symbol may retrieve word variants: so sanh y dong ha hoi. hieu van lam ((((xuc va) or (tuc va))) or (thuc va)) thanh di cuu tre*.