Perhaps you should try some spelling variations:
chiet tach » chieu sach
nhung cong » dung cong, thong cong, hang cong
canh tinh » hanh tinh, manh tinh, canh tranh
vat nhung » va nhung, vap nhung, vai nhung
tac chuan » tac quan, tac cua, tac can
tinh vat » trinh vat, sinh vat, tinh va
cong tac » cong ty
chuan tu » chua tu, chuan muc, chuan ted

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

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