Perhaps you should try some spelling variations:
cham tinh » chau tinh, cham binh, ha tinh
trang cua » tranh cua, trung cua, thang cua
hoc cham » toc cham, hoc chat, hoc chan
tang cua » mang cua, hang cua, tang luan
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van 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 cham tinh - hanh ((trang cua) or (tang cua)) trong cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc cham tinh - hanh ((trang cua) OR (tang cua)) trong cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc cham tinh - hanh ((trang cua) or (tang cua)) trong cong tan toan ban*.