Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hieu nganh » vien nganh, hiem ngan, hieu manh
tranh chuc » tranh chua, tranh cua, trang phuc
thien anh » thien danh, tien anh, thien thanh
nang cong » nang song, dang cong, bang cong
cong manh » cong danh, duong manh, cong thanh
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu nganh) or (thien anh)) - hanh tranh chuc nang cong manh ((toan cau) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu nganh) OR (thien anh)) - hanh tranh chuc nang cong manh ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu nganh) or (thien anh)) - hanh tranh chuc nang cong manh ((toan cau) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu nganh) or (thien anh)) - hanh tranh chuc nang cong manh ((toan cau) OR (toan cao))*.