Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
hanh trang » thanh trung, canh tranh, hanh trinh
hieu lang » chieu sang, hieu quang, nhieu tang
hanh mang » nhanh mang, nhanh lang, thanh hang
hoc hieu » hoc thieu, hoc hien, doc hieu
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: hoc hieu lang - ((hanh mang) or (hanh trang)) va thuong cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu lang - ((hanh mang) OR (hanh trang)) va thuong cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: hoc hieu lang - ((hanh mang) or (hanh trang)) va thuong cong dan than ban*.