Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
chat xuc » chat huu, cam xuc, chao xu
tinh lai » tinh lao, tinh hai, minh lai
tu sach » thu sach, su sach, te sach
va tinh » may tinh
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
cuu tre » cua tre, cau tren, cau treo
xuc va » duc va, tuc va, luc va

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 ty nang xa hoi. ((hieu ve) OR (hieu va)) chat xuc va tinh lai ((cua triet) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. ((hieu ve) OR (hieu va)) chat xuc va tinh lai ((cua triet) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang xa hoi. ((hieu ve) OR (hieu va)) chat xuc va tinh lai ((cua triet) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. ((hieu ve) OR (hieu va)) chat xuc va tinh lai ((cua triet) or (cuu tre))*.