Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hien nhanh » hien hanh, tien thanh, dien thanh
hanh tranh » canh tranh, hanh trinh, hanh trang
hang luong » nang luong, hang thuong, hoang vuong
tranh cua » doanh cua, manh cua
vat thanh » dat thanh, gat thanh, tat thanh
cua hang » cua dang, cua nhung, cua cong
vat tuan » van tuan, va tuan, viet tuan

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 (thien thanh)) - hanh tranh cua hang luong ((vat tuan) or (vat thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (thien thanh)) - hanh tranh cua hang luong ((vat tuan) OR (vat thanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien nhanh) OR (thien thanh)) - hanh tranh cua hang luong ((vat tuan) or (vat thanh)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) OR (thien thanh)) - hanh tranh cua hang luong ((vat tuan) or (vat thanh)) cau*.