Perhaps you should try some spelling variations:
luong quang » luong quan, dung quang
minh luong » dinh luong, minh tuong, minh cuong
hieu luat » hieu qua
quang uan » quang tuan, quang ban, quang tran
dat chi » dat cho, dau chi, danh chi
dat thi » dat thoi, dan thi, dao thi
uan den » quan den, luan den, ban den
tin » tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tin dung ((dat chi) OR (dat thi)) hieu luat ) or ( minh luong quang uan den o ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung ((dat chi) OR (dat thi)) hieu luat ) OR ( minh luong quang uan den o )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tin dung ((dat chi) OR (dat thi)) hieu luat ) or ( minh luong quang uan den o ))".
• Adding a wildcard symbol may retrieve word variants: (( tin dung ((dat chi) OR (dat thi)) hieu luat ) or ( minh luong quang uan den o ))*.