Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
lieu tinh » trieu tinh, bien tinh
cua nhung » va nhung
anh dang » anh dong, anh dung, anh bang
dang cua » dung cua, dong cua, mang cua
cong tan » cong tac, cong san, cong thanh
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 ((lieu tinh) or (diep tinh)) - anh dang cua nhung cong tan tran van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((lieu tinh) OR (diep tinh)) - anh dang cua nhung cong tan tran van.
• Adding a wildcard symbol may retrieve word variants: theo ((lieu tinh) or (diep tinh)) - anh dang cua nhung cong tan tran van*.