Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cau tuc » cau truc, cau tu, cau luc
va danh » va dinh, va hanh, dia danh
cuu tre » cua tre, cau tren
ve cau » ke cau, va cau, ve cac
va dan » ca dan, va dao, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky nang xa hoi. hieu ve cau tuc ((va danh) or (va dan)) vai ((cuu tre) OR (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang xa hoi. hieu ve cau tuc ((va danh) OR (va dan)) vai ((cuu tre) OR (cau treo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang xa hoi. hieu ve cau tuc ((va danh) or (va dan)) vai ((cuu tre) OR (cau treo))".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang xa hoi. hieu ve cau tuc ((va danh) or (va dan)) vai ((cuu tre) OR (cau treo))*.