Perhaps you should try some spelling variations:
trien quang » tran quang, tuyen quang, dien quang
hoc trien » hoc tren, hoc tien, hoc truyen
hanh hang » thanh hang, hanh han, hanh mang
hang hang » nang hang, cang thang, hung thang
dong cong » duong cong, dung cong, dang cong
cong dan » cong san, cong tan, huong dan
toan tap » toan ban
va dong » van dong, ha dong, xa dong

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc trien quang - ((hanh hang) or (hang hang)) va dong cong dan ((toan tap) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc trien quang - ((hanh hang) OR (hang hang)) va dong cong dan ((toan tap) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc trien quang - ((hanh hang) or (hang hang)) va dong cong dan ((toan tap) or (van ban))*.