Perhaps you should try some spelling variations:
thanh tung » thanh cong
cong luong » cong thuong, nang luong, cong dong
luong toan » luong thanh, truong toan, luong tai
doi chieu » doi chi, ho chieu, mot chieu
dung cong » dung trong
doc hieu » toc thieu, hoc thieu, hoc hien
toan cao » toan ban, toan tap
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: ((doi chieu) or (doc hieu)) sach - ((thanh trung) OR (thanh tung)) va dung cong luong toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) sach - ((thanh trung) OR (thanh tung)) va dung cong luong toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (doc hieu)) sach - ((thanh trung) OR (thanh tung)) va dung cong luong toan cao*".