Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
phap thong » phap phong, pho thong, phap tieng
phap chong » phap phong, phap cong, pham hong
chu nang » chuc nang, chua nang, cuu nang
cong san » cong tac
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban
tho chu » theo chu, cho chu, ho chu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tho chu nang - hanh trung ((phap thong) OR (phap chong)) cong san ((toan tai) OR (toan ban))~.
• Adding a wildcard symbol may retrieve word variants: tho chu nang - hanh trung ((phap thong) or (phap chong)) cong san ((toan tai) or (toan ban))*.