Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
dien quang » diep quang, trien quang, lien quan
hien quan » thien quan, lien quan, vien quan
cong luan » tong luan, cong tuan, dong luan
va hang » van hang, va lang, va hanh
va nang » van nang, da nang, cam nang

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 quan) or (dien quang)) - thanh truong ((va hang) OR (va nang)) cong luan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien quan) OR (dien quang)) - thanh truong ((va hang) OR (va nang)) cong luan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien quan) or (dien quang)) - thanh truong ((va hang) OR (va nang)) cong luan van ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien quan) or (dien quang)) - thanh truong ((va hang) OR (va nang)) cong luan van ban*.