Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
thanh do » thanh de, thanh pho, thanh hoa
so sanh » do sanh
dang ha » dong ha, dung ha, lang ha
van cam » van nam, van lam, van cau
thuc va » thuc vat, thuc dan, thuc day
cuu tre » cua tre, cau tren, cau treo
sanh y » sinh y, anh y, hanh y
y dang » ky dang, 2 dang, _ dang
ha hoi » hoa hoi, ha noi, xa hoi
xuc va » duc va, tuc va, luc va
do cuu » do huu, do cua, ho 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 dang ha hoi. hieu van cam ((xuc va) or (thuc va)) thanh do cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh y dang ha hoi. hieu van cam ((xuc va) OR (thuc va)) thanh do cuu tre.
• Adding a wildcard symbol may retrieve word variants: so sanh y dang ha hoi. hieu van cam ((xuc va) or (thuc va)) thanh do cuu tre*.