Perhaps you should try some spelling variations:
ban hanh » ban hang
cau treo » cau theo, cau tren, cau triet
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
hai xuc » hai cuc, hai xu, chat xuc
va hanh » van hanh, va thanh, dao hanh
va danh » va dinh, va dan, dia danh
su cao » cu cao, vu cao, su co
ma hoi » mai hoi, xa hoi, ma hoa
va hai » van hai, va chai, va khai
di cau » da cau, diem cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cao ky nang ma hoi. hieu va hai xuc ((((va hanh) OR (ban hanh))) or (va danh)) di cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cao ky nang ma hoi. hieu va hai xuc ((((va hanh) OR (ban hanh))) OR (va danh)) di cau treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cao ky nang ma hoi. hieu va hai xuc ((((va hanh) OR (ban hanh))) or (va danh)) di cau treo".
• Adding a wildcard symbol may retrieve word variants: su cao ky nang ma hoi. hieu va hai xuc ((((va hanh) OR (ban hanh))) or (va danh)) di cau treo*.