Perhaps you should try some spelling variations:
viet thinh » viet thanh, viet trinh, tien thinh
lang luan » tang luan, hang luan, lang xuan
bang luan » tang luan, hang luan, dung luan
phan cong » thanh cong
tan thinh » van thinh, tien thinh, tai chinh
thinh han » trinh han, thinh ha, thinh doan
hoc viet » hoc hien
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc viet thinh - nhanh ((lang luan) or (bang luan)) phan cong tan thinh han~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc viet thinh - nhanh ((lang luan) OR (bang luan)) phan cong tan thinh han*.