Perhaps you should try some spelling variations:
thuong dan » huong dan, thuong han, thuong lan
thuong dam » thuong mai, huong dan, truong dai
chua xang » chuc nang, chu bang, chua dong
chua nang » chuc nang, kha nang, cuu nang
hanh dan » thanh dan, hanh san, canh dan
toan cao » toan ban, toan tap
ca hang » cua hang, ca chang, va hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chua xang) OR (chua nang)) - hanh dan ca hang ((thuong dan) or (thuong dam)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chua xang) OR (chua nang)) - hanh dan ca hang ((thuong dan) OR (thuong dam)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chua xang) OR (chua nang)) - hanh dan ca hang ((thuong dan) or (thuong dam)) toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chua xang) OR (chua nang)) - hanh dan ca hang ((thuong dan) or (thuong dam)) toan cao*.