Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
hanh tung » thanh tung, manh tung, hanh dung
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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: ho chieu sach - ((hanh tung) or (thanh trung)) cua thong cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((hanh tung) OR (thanh trung)) cua thong cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((hanh tung) or (thanh trung)) cua thong cong tan toan cao*.