Perhaps you should try some spelling variations:
luong quang » luong quan, dung quang
cong quang » thong quang, duong quang, dung quang
dang quang » dung quang, nang quan, dang hung
dung cong » dung trong
ho trieu » mot trieu, 25 trieu, 30 trieu
cong tac » cong ty
tac van » tac vang, cac van, tac 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 trieu tinh - thanh ((((cong quang) OR (dang quang))) or (luong quang)) dung cong tac van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho trieu tinh - thanh ((((cong quang) OR (dang quang))) OR (luong quang)) dung cong tac van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho trieu tinh - thanh ((((cong quang) OR (dang quang))) or (luong quang)) dung cong tac van ban".
• Adding a wildcard symbol may retrieve word variants: ho trieu tinh - thanh ((((cong quang) OR (dang quang))) or (luong quang)) dung cong tac van ban*.