Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
thanh trung » thanh tung
hanh trang » canh tranh, hanh trinh, minh trang
hieu manh » chieu xanh, hieu nganh, dieu hanh
toc hieu » toc thieu, doc hieu, hoc thieu
cong tac » cong ty
tan ban » toan ban, tang ban, can ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc hieu manh - ((hanh trang) or (thanh trung)) va thuong cong tac ((tan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu manh - ((hanh trang) OR (thanh trung)) va thuong cong tac ((tan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: toc hieu manh - ((hanh trang) or (thanh trung)) va thuong cong tac ((tan ban) or (van ban))*.