Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
tong cong » trong cong, cong cong, dung cong
tranh ban » trinh ban, tranh hang, tranh luan
cua tong » cua cong, cua dong, cua nong
cong tan » cong tac, cong san, cong thanh
tran ban » toan ban, tran bai, tran tan
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: doi chieu tinh - canh tranh cua tong cong tan ((((tran ban) OR (tranh ban))) or (tran van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - canh tranh cua tong cong tan ((((tran ban) OR (tranh ban))) OR (tran van)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu tinh - canh tranh cua tong cong tan ((((tran ban) OR (tranh ban))) or (tran van))".
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - canh tranh cua tong cong tan ((((tran ban) OR (tranh ban))) or (tran van))*.