Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu
tranh cua » doanh cua, manh cua
hang dong » hang nong, hang cong, hanh dong
ho chieu » theo chieu, doi chieu, mot chieu
cua hang » cua dang, cua nhung, cua cong
dong ban » dong bang, dong san, dong bac
ban toan » bai toan, ban than, van toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (((hoc thieu) OR (hoc hien)))) tach - hanh tranh cua hang dong ban toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (((hoc thieu) OR (hoc hien)))) tach - hanh tranh cua hang dong ban toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (((hoc thieu) OR (hoc hien)))) tach - hanh tranh cua hang dong ban toan tap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (((hoc thieu) OR (hoc hien)))) tach - hanh tranh cua hang dong ban toan tap*.