Perhaps you should try some spelling variations:
hanh luan » khanh luan, hang luan, hanh luat
hang cong » dang cong, hang nong, bang cong
chi xanh » chi anh, chi danh, chi hanh
cong tan » cong tac, cong san, cong thanh
toan tap » toan ban
doi chi » doi khi
luan va » luan van, luat va
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - hanh luan va hang cong tan ((toan tap) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - hanh luan va hang cong tan ((toan tap) OR (van ban))*.