Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hien tach » thien hach, chiet tach, vien bach
tang luan » dung luan
san thanh » ban thanh, van thanh, son thanh
thanh bac » nhanh bac, thanh bai, thanh san
tang cua » mang cua, hang cua, thong cua
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien tach - hanh ((tang cua) or (tang luan)) thong cong san thanh bac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien tach - hanh ((tang cua) OR (tang luan)) thong cong san thanh bac.
• Adding a wildcard symbol may retrieve word variants: hoc hien tach - hanh ((tang cua) or (tang luan)) thong cong san thanh bac*.