Perhaps you should try some spelling variations:
chieu tach » chiet tach, chieu sach, chiu trach
trinh chat » tinh chat, trinh luat, trinh han
trinh thuc » trinh tu, trinh thi
cuong tap » luong tap, cong tac, luong tai
ho chieu » theo chieu, hoc thieu, doi chieu
cong tap » cong tac, cong tan, tong tap
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tach - hanh ((trinh chat) or (trinh thuc)) hang ((cong tap) OR (cuong tap)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tach - hanh ((trinh chat) OR (trinh thuc)) hang ((cong tap) OR (cuong tap)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tach - hanh ((trinh chat) or (trinh thuc)) hang ((cong tap) OR (cuong tap)) toan tap".
• Adding a wildcard symbol may retrieve word variants: ho chieu tach - hanh ((trinh chat) or (trinh thuc)) hang ((cong tap) OR (cuong tap)) toan tap*.