Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat, trinh han
trinh cua » tinh cua, trinh luat, trinh luan
hang cong » dang cong, hang nong, bang cong
cong dan » cong san, cong tan, huong dan
chan cap » khan cap, than cap, phan cac
va tinh » may tinh
cao cap » cao chat
ho va » ho van, nho va, tho va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho va tinh - hanh ((trinh cua) OR (trinh quan)) hang cong dan ((chan cap) or (cao cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho va tinh - hanh ((trinh cua) OR (trinh quan)) hang cong dan ((chan cap) OR (cao cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho va tinh - hanh ((trinh cua) OR (trinh quan)) hang cong dan ((chan cap) or (cao cap))".
• Adding a wildcard symbol may retrieve word variants: ho va tinh - hanh ((trinh cua) OR (trinh quan)) hang cong dan ((chan cap) or (cao cap))*.