Perhaps you should try some spelling variations:
thanh trung » thanh tung
hanh trang » canh tranh, hanh trinh, minh trang
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
theo chu » theo chieu, cho chu, chao chu
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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