Perhaps you should try some spelling variations:
hong cuong » hong vuong, hung cuong, thong chuong
thieu cach » thieu cac, hieu cac, thien hach
hieu cach » hieu cac, chieu sach, hieu ca
canh tinh » hanh tinh, manh tinh, canh tranh
tinh luan » trinh luan, binh luan, minh luan
hung cong » nhung cong, hung cuong, phung cong
van thanh » ban thanh, van tuan
thanh tap » thanh lap, thanh tai, thanh tay

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu cach) or (hieu cach)) - canh tinh luan ((hung cong) or (hong cuong)) van thanh tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu cach) OR (hieu cach)) - canh tinh luan ((hung cong) OR (hong cuong)) van thanh tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu cach) or (hieu cach)) - canh tinh luan ((hung cong) or (hong cuong)) van thanh tap*.