Perhaps you should try some spelling variations:
tran phung » tran phuong, trang phung, tran hung
phung cong » nhung cong, phong cong, nhung chong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
anh quang » anh xquang, nhanh quang, tinh quang
anh quan » anh tuan, ban quan, anh nhan
cong tac » cong ty
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chinh sach - ((anh quang) OR (anh quan)) tran phung cong tac ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - ((anh quang) OR (anh quan)) tran phung cong tac ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chinh sach - ((anh quang) OR (anh quan)) tran phung cong tac ((toan cau) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - ((anh quang) OR (anh quan)) tran phung cong tac ((toan cau) or (toan tap))*.