Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
chiet tach » chieu sach
nhung cong » dung cong, thong cong, hang cong
lieu tinh » diep tinh, bien tinh
trinh van » trinh han, trinh quan, trinh toan
van nhung » van nhuong, va nhung, van hung
cong tac » cong ty
tac chan » tac chuan, tac can, tac chon
chan tu » phan tu, han tu, chon tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((((lieu tinh) or (trieu tinh))) or (chiet tach)) - canh trinh van nhung cong tac chan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((lieu tinh) OR (trieu tinh))) OR (chiet tach)) - canh trinh van nhung cong tac chan tu.
• Adding a wildcard symbol may retrieve word variants: ho ((((lieu tinh) or (trieu tinh))) or (chiet tach)) - canh trinh van nhung cong tac chan tu*.