Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
thieu xanh » chieu xanh, hieu manh, thien anh
van nhanh » van thanh, van hanh, van khanh
nhanh cau » nhanh cay, thanh chau, nhanh ha
tien anh » tieng anh, tien manh, dien anh
cua dung » cua dang, cua dong, cua rung
qua dung » quang dung, su dung, qua song
cong van » cong vang, cong san, song van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) or (tien anh)) - hanh tranh ((cua dung) OR (qua dung)) cong van nhanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (tien anh)) - hanh tranh ((cua dung) OR (qua dung)) cong van nhanh cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (tien anh)) - hanh tranh ((cua dung) OR (qua dung)) cong van nhanh cau*".