Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat, trinh han
trinh cua » tinh cua, trinh luat, trinh luan
dung cong » dung trong
thi hien » thi lien, thi huyen, thi hue
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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: ((thi hien) or (ho chieu)) xanh - hanh ((trinh cua) OR (trinh quan)) dung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thi hien) OR (ho chieu)) xanh - hanh ((trinh cua) OR (trinh quan)) dung cong tan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thi hien) or (ho chieu)) xanh - hanh ((trinh cua) OR (trinh quan)) dung cong tan toan ban".
• Adding a wildcard symbol may retrieve word variants: ((thi hien) or (ho chieu)) xanh - hanh ((trinh cua) OR (trinh quan)) dung cong tan toan ban*.