Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
xuan trung » xuan truong, quang trung, doan trung
trung cong » truong cong, trong cong, trung uong
hieu manh » chieu xanh, hieu nganh, dieu hanh
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 ((hieu manh) or (chieu sach)) - ((thanh trung) OR (thanh tung)) xuan trung cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sach)) - ((thanh trung) OR (thanh tung)) xuan trung cong tan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu sach)) - ((thanh trung) OR (thanh tung)) xuan trung cong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sach)) - ((thanh trung) OR (thanh tung)) xuan trung cong tan toan cao*.