Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
thu sach » thuat sach, thuoc sach, thu hoach
van sinh » van minh, va sinh, van dinh
cao xuc » cam xuc, cao duc, cao suc
cuu tre » cua tre, cau tren
xuc van » duc van, luc van, vuc van
tu sach » su sach, te sach, tu cach
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
va cao » va cac, va co, va dao

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

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