Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
trung cap » truong cao, trung tam
cap thong » cap tong, chap thuong, phap thong
khoan cam » khoa cam, khoan va, phan cam
cong san » cong tac
tuan cap » than cap, thuan cam, toan cao
toan cau » toan cao, toan ban, toan tap

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 trung cap thong cong san ((((tuan cap) or (toan cau))) or (khoan cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung cap thong cong san ((((tuan cap) OR (toan cau))) OR (khoan cam)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung cap thong cong san ((((tuan cap) or (toan cau))) or (khoan cam))*.