Perhaps you should try some spelling variations:
theo chinh » thien chinh, te chinh, che chinh
nhung cong » dung cong, thong cong, nhung don
trinh tran » trinh trang, trinh toan, trinh tren
ganh nang » anh nang, nganh nong, van nang
hang cong » dang cong, hang nong, bang cong
nang cua » mang cua, hang cua, nang dua
tran van » luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chinh sach - ganh nang cua ((nhung cong) or (hang cong)) trinh tran van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chinh sach - ganh nang cua ((nhung cong) OR (hang cong)) trinh tran van*.