Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
huong manh » duong manh, hung manh, luong manh
hoc thieu » toc thieu, hoc hien
doc hieu » toc thieu, hoc hien
tranh va » tranh van, trang va, trinh va
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
canh » anh, can, hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) OR (hoc thieu)) luc - canh tranh va nhung huong manh ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) luc - canh tranh va nhung huong manh ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (hoc thieu)) luc - canh tranh va nhung huong manh ((toan cau) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (hoc thieu)) luc - canh tranh va nhung huong manh ((toan cau) or (toan tap))*.