Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat, trinh han
hieu manh » chieu xanh, hieu nganh, dieu hanh
trinh cua » tinh cua, trinh luat, trinh luan
cuong tap » cong tac, luong tai, cong tan
luong tap » luong tai, luong tham, luong thai
hoc hieu » hoc thieu, hoc hien, doc hieu
quan cap » quan cau, quan lap, quang cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - hanh ((trinh cua) OR (trinh quan)) nhung ((cuong tap) or (luong tap)) quan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh ((trinh cua) OR (trinh quan)) nhung ((cuong tap) OR (luong tap)) quan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - hanh ((trinh cua) OR (trinh quan)) nhung ((cuong tap) or (luong tap)) quan cap".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh ((trinh cua) OR (trinh quan)) nhung ((cuong tap) or (luong tap)) quan cap*.