Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
thanh tung » thanh cong
dung tuong » dung thuong, dung truong, dung trong
tuong bang » cuong bang, muong bang, trong bang
doi chieu » doc hieu, doi chi, mot chieu
bang than » bang thanh, ban than, sang than
ho chieu » hoc thieu, mot chieu, thi chieu
than cap » khan cap, thanh lap, thanh cac
tung va » trung va, tuong va, dung va
va dung » van dung, va duong, vat dung

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) or (((ho chieu) OR (doi chieu)))) tinh - thanh tung va dung tuong bang than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (((ho chieu) OR (doi chieu)))) tinh - thanh tung va dung tuong bang than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (((ho chieu) OR (doi chieu)))) tinh - thanh tung va dung tuong bang than cap".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (((ho chieu) OR (doi chieu)))) tinh - thanh tung va dung tuong bang than cap*.