Perhaps you should try some spelling variations:
luan nhung » luan chung, luan hung, quan nhung
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
cong tac » cong ty
toan tai » toan tap, doanh tai, toan ban
toan cao » toan ban, toan tap
cho chu » cho thue
chu van » cuu van, chu han

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

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