Perhaps you should try some spelling variations:
chat tinh » chau tinh, cham tinh, cha tinh
bang luan » tang luan, dung luan, tong luan
hang luan » tang luan, dung luan
hanh cong » thanh cong, hang cong, hanh dong
tan tranh » tan tran, can tranh, lan tranh
tranh ban » trinh ban, tranh hang, tranh luan
hoc chat » hoc phat, hoc cao, hoc phan
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 chat tinh - nhanh ((bang luan) or (hang luan)) hanh cong tan tranh ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chat tinh - nhanh ((bang luan) OR (hang luan)) hanh cong tan tranh ban*.