Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
thi chieu » thi chien, thi hieu, theo chieu
theo chu » theo chieu, cho chu, chao chu
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than tap » toan tap, han tap, phan tap
tang ha » tang ma, trung ha, tang van
lang ha » long ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chu) or (thi chieu)) xanh - anh ((tang ha) OR (lang ha)) khong cong tac than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (thi chieu)) xanh - anh ((tang ha) OR (lang ha)) khong cong tac than tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chu) or (thi chieu)) xanh - anh ((tang ha) OR (lang ha)) khong cong tac than tap".
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (thi chieu)) xanh - anh ((tang ha) OR (lang ha)) khong cong tac than tap*.