Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
mot chieu » doi chieu
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
ho chieu » theo chieu, doi chieu, thi chieu
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 (mot chieu))) or (hoc thieu)) tach - hanh tranh cua cong dong ban toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (mot chieu))) OR (hoc thieu)) tach - hanh tranh cua cong dong ban toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((ho chieu) OR (mot chieu))) or (hoc thieu)) tach - hanh tranh cua cong dong ban toan tap".
• Adding a wildcard symbol may retrieve word variants: ((((ho chieu) OR (mot chieu))) or (hoc thieu)) tach - hanh tranh cua cong dong ban toan tap*.