Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hanh trung » thanh trung, hanh trang, manh trung
den thanh » de thanh, dinh thanh, dong thanh
trung tin » trung tinh, trong tin, trang tin
trong dan » trong dang, trong san, trong tan
dan hang » ban hang, van hang, dat hang
hang dau » hang va, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien nhanh) or (den thanh)) - hanh trung tin dung trong dan hang dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (den thanh)) - hanh trung tin dung trong dan hang dau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) or (den thanh)) - hanh trung tin dung trong dan hang dau*.