Perhaps you should try some spelling variations:
nhung luong » hung luong, nhung huong, nhung tuong
hieu cach » hieu cac, chieu sach, hieu ca
luong thi » luong tai
hoc hieu » hoc thieu, hoc hien, doc hieu
trinh va » trinh van, trinh vat, trinh ve
trang va » tran van, hang va
thi toan » thi tran, thi hoan, thi loan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu cach - canh ((trinh va) or (trang va)) nhung luong thi toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu cach - canh ((trinh va) OR (trang va)) nhung luong thi toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc hieu cach - canh ((trinh va) or (trang va)) nhung luong thi toan tap*.