Perhaps you should try some spelling variations:
thuong mach » thuong mai, phuong cach, trong mach
hanh trinh » canh tranh, hanh chinh
thuong ma » thuong mai, thuong va, thuong gap
theo chu » theo chieu, chao chu, theo yeu
trinh va » trinh van, trinh vat, trinh ve
toan cao » toan ban, toan tap
cho chu » cho thue
va hang » van hang, va nang, va lang

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