Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
nhanh mang » nhanh lang, nhanh quang, nhanh thang
hanh mang » hanh trang, nhanh lang, thanh hang
theo chu » theo chieu, cho chu, chao chu
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) or (theo tieu)) xanh - ((hanh mang) OR (nhanh mang)) va nhung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (theo tieu)) xanh - ((hanh mang) OR (nhanh mang)) va nhung cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chu) or (theo tieu)) xanh - ((hanh mang) OR (nhanh mang)) va nhung cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (theo tieu)) xanh - ((hanh mang) OR (nhanh mang)) va nhung cong dan toan cao*.