Perhaps you should try some spelling variations:
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
luan tang » luan nang, lan tang, xuan trang
tang cong » tang cuong, trang cong, dang cong
theo chu » theo chieu, cho chu, chao chu
cong tac » cong ty
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
tho chu » cho chu, ho chu, thong chu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tho chu) or (theo chu)) tinh - hanh tang luan tang cong tac ((toan cau) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tho chu) OR (theo chu)) tinh - hanh tang luan tang cong tac ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tho chu) or (theo chu)) tinh - hanh tang luan tang cong tac ((toan cau) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ((tho chu) or (theo chu)) tinh - hanh tang luan tang cong tac ((toan cau) OR (toan ban))*.