Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat, trinh han
nhung cong » dung cong, thong cong, hang cong
mot chieu » doi chieu, ho chieu
trinh cua » tinh cua, trinh luat, trinh luan
theo chu » theo chieu, cho chu, chao chu
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh 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: ((theo chu) or (mot chieu)) xanh - hanh ((trinh cua) OR (trinh quan)) nhung cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (mot chieu)) xanh - hanh ((trinh cua) OR (trinh quan)) nhung cong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chu) or (mot chieu)) xanh - hanh ((trinh cua) OR (trinh quan)) nhung cong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (mot chieu)) xanh - hanh ((trinh cua) OR (trinh quan)) nhung cong dan toan ban*.