Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
lang cong » dang cong, bang cong, hang cong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
tung va » trung va, tuong va, dung va
va lang » va nang, hoa lang

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) or (hieu manh))) or (trieu tinh)) - thanh tung va lang cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((chieu sach) OR (hieu manh))) OR (trieu tinh)) - thanh tung va lang cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((((chieu sach) or (hieu manh))) or (trieu tinh)) - thanh tung va lang cong tan toan cao*.