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
hien anh » hien hanh, thien anh, dien anh
cong tam » cong tac, cong tan, cong nam
tam than » ban than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien anh - hanh ((trinh cua) OR (trinh quan)) hang cong tam than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien anh - hanh ((trinh cua) OR (trinh quan)) hang cong tam than cap".
• Adding a wildcard symbol may retrieve word variants: hoc hien anh - hanh ((trinh cua) OR (trinh quan)) hang cong tam than cap*.