Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
chu manh » ho manh, chu han, chu van
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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 manh - hanh ((trinh quan) or (trinh han)) dung cong tan ((toan cau) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu manh - hanh ((trinh quan) OR (trinh han)) dung cong tan ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu manh - hanh ((trinh quan) or (trinh han)) dung cong tan ((toan cau) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: theo chu manh - hanh ((trinh quan) or (trinh han)) dung cong tan ((toan cau) OR (toan ban))*.