Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tang cua » mang cua, tang luan, thong cua
hang cua » mang cua, hang ca, huong cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
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: theo ((ho manh) or (chu van)) - hanh ((tang cua) OR (hang cua)) nhung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((ho manh) OR (chu van)) - hanh ((tang cua) OR (hang cua)) nhung cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((ho manh) or (chu van)) - hanh ((tang cua) OR (hang cua)) nhung cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((ho manh) or (chu van)) - hanh ((tang cua) OR (hang cua)) nhung cong dan toan cao*.