Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu tinh » trieu tinh, lieu tinh, chau tinh
thuat ban » thuat bai, thuat bao, thuat san
cong tan » cong tac, cong san, cong thanh
toan ban » van ban
va bang » va lang, va ban, va hang
va nang » van nang, da nang, cam nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu tinh - canh tranh ((va bang) OR (va nang)) cong tan ((thuat ban) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu tinh - canh tranh ((va bang) OR (va nang)) cong tan ((thuat ban) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu tinh - canh tranh ((va bang) OR (va nang)) cong tan ((thuat ban) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: theo chieu tinh - canh tranh ((va bang) OR (va nang)) cong tan ((thuat ban) or (toan ban))*.