Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thuat xung » thuat dung, thuat hung, thuat song
doi chieu » doc hieu, doi chi, ho chieu
thuat ung » thuat dung, thuat hung, thuat song
cong dan » cong san, cong tan, huong dan
toan cao » toan ban
toan tap » toan ban

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 ((thuat ung) OR (thuat xung)) cong dan ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - canh tranh ((thuat ung) OR (thuat xung)) cong dan ((toan cao) OR (toan tap))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu tinh - canh tranh ((thuat ung) OR (thuat xung)) cong dan ((toan cao) or (toan tap))*".