Perhaps you should try some spelling variations:
hanh thuong » khanh thuong, thanh thuong, hang thuong
chieu sach » chinh sach, chiet tach, chieu sang
anh thuong » anh huong, hang thuong, tnhh thuong
doi chieu » doc hieu, doi chi, mot chieu
dan cong » dang cong, van cong, dan dong
cong tac » cong ty
tac khan » tac nhan, cac khoan, tac chuan
khan cap » khan ap, than cap, khoan cam

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 sach - ((hanh thuong) or (anh thuong)) cac dan cong tac khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((hanh thuong) OR (anh thuong)) cac dan cong tac khan cap*.