Perhaps you should try some spelling variations:
trung thanh » truong thanh
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
truong cao » truong dai
thong cong » trong cong, tong cong, thong thong
cong dan » cong san, cong tan, huong dan
dan hang » ban hang, van hang, dat hang

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 - thanh ((truong cao) or (trung thanh)) thong cong dan hang va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh ((truong cao) OR (trung thanh)) thong cong dan hang va.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh ((truong cao) or (trung thanh)) thong cong dan hang va*.