Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
truong cao » truong dai
truong ca » truong va, trong ca, truong dai
nhanh cay » nhanh ha, nhanh bac, nhanh va
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty

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 sach - manh ((truong ca) or (truong cao)) nhung ((cong tan) OR (cong tac)) nhanh cay~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - manh ((truong ca) OR (truong cao)) nhung ((cong tan) OR (cong tac)) nhanh cay.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - manh ((truong ca) or (truong cao)) nhung ((cong tan) OR (cong tac)) nhanh cay".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - manh ((truong ca) or (truong cao)) nhung ((cong tan) OR (cong tac)) nhanh cay*.