Perhaps you should try some spelling variations:
hanh tang » hanh trang, anh tang, hanh mang
luan vang » luan nang, luan tang, luan va
theo chu » theo chieu, cho chu, chao chu
chu tinh » chau tinh, chua tinh, cuu tinh
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu tinh - hanh tang ((luan vang) or (luan van)) cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu tinh - hanh tang ((luan vang) OR (luan van)) cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo chu tinh - hanh tang ((luan vang) or (luan van)) cong dan toan cao*.