Perhaps you should try some spelling variations:
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
chau tinh » cuu tinh, ha tinh, cua tinh
dap nhung » vap nhung, va nhung, dap ung
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: ho ((chau tinh) or (trieu tinh)) - ((thanh trung) OR (thanh tung)) dap nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chau tinh) OR (trieu tinh)) - ((thanh trung) OR (thanh tung)) dap nhung cong tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chau tinh) or (trieu tinh)) - ((thanh trung) OR (thanh tung)) dap nhung cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chau tinh) or (trieu tinh)) - ((thanh trung) OR (thanh tung)) dap nhung cong tac toan cau*.