Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
tang luan » dung luan
theo chu » theo chieu, cho chu, chao chu
tang cua » mang cua, hang cua, thong cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
cua chu » sua chua

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) or (cua chu)) xanh - hanh ((tang cua) OR (tang luan)) thuong cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (cua chu)) xanh - hanh ((tang cua) OR (tang luan)) thuong cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chu) or (cua chu)) xanh - hanh ((tang cua) OR (tang luan)) thuong cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (cua chu)) xanh - hanh ((tang cua) OR (tang luan)) thuong cong dan toan cao*.