Perhaps you should try some spelling variations:
chieu tinh » lieu tinh, chau tinh, kieu tinh
nhung cong » dung cong, thong cong, hang cong
hanh tung » thanh tung, manh tung, hanh dung
anh dang » anh dong, anh dung, anh bang
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban

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 tinh) OR (trieu tinh)) - ((hanh tung) or (anh dang)) va nhung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (trieu tinh)) - ((hanh tung) OR (anh dang)) va nhung cong tan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu tinh) OR (trieu tinh)) - ((hanh tung) or (anh dang)) va nhung cong tan toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) OR (trieu tinh)) - ((hanh tung) or (anh dang)) va nhung cong tan toan ban*.