Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
truong cua » truong ca, truong quan, huong cua
truong cao » truong dai
nhung cong » dung cong, thong cong, hang cong
nhanh cau » nhanh cay, thanh chau, hang cau
cong tan » cong tac, cong san, cong thanh
nhanh ha » thanh hoa, thanh hai, khanh hoa

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