Perhaps you should try some spelling variations:
chiet tach » chieu sach
nhieu tang » chieu sang, hieu lang, nhiet nang
hinh trong » chinh trong, dinh trong, sinh trong
anh trong » anh thuong, dinh trong, lang trong
dung cong » dung trong
van dung » van dong, xay dung, tin dung
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 ((chiet tach) or (nhieu tang)) - ((hinh trong) or (anh trong)) van dung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chiet tach) OR (nhieu tang)) - ((hinh trong) OR (anh trong)) van dung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chiet tach) or (nhieu tang)) - ((hinh trong) or (anh trong)) van dung cong tac toan cau*.