Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
manh trung » manh tung, thanh trung, manh hung
cap thuong » chap thuong, ca thuong, cao thuong
trung cap » truong cao, trung tam
cong tan » cong tac, cong san, cong thanh
toan tap » toan ban
pha tap » pham tai

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 trung cap thuong cong tan ((toan tap) or (pha tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - manh trung cap thuong cong tan ((toan tap) OR (pha tap)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - manh trung cap thuong cong tan ((toan tap) or (pha tap))*.