Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
dang trong » dung trong, dong trong, lang trong
cach nhanh » cac nganh, cac nhan
tranh cua » doanh cua, manh cua
cac thanh » bac thanh, ban thanh, cuu thanh
thi hieu » thi chieu, thi hien, thi dieu
ho chieu » theo chieu, hoc thieu, doi chieu
cua dang » cua cong, cua ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thi hieu) or (ho chieu)) tinh - hanh tranh cua dang trong ((cac thanh) OR (cach nhanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thi hieu) OR (ho chieu)) tinh - hanh tranh cua dang trong ((cac thanh) OR (cach nhanh)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thi hieu) or (ho chieu)) tinh - hanh tranh cua dang trong ((cac thanh) OR (cach nhanh)) cao".
• Adding a wildcard symbol may retrieve word variants: ((thi hieu) or (ho chieu)) tinh - hanh tranh cua dang trong ((cac thanh) OR (cach nhanh)) cao*.