Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
chat xuc » chat huu, cam xuc, chao xu
ky trang » ke trang, ky trong, ky tang
trang xa » trang va, trang ha, trong xa
tu sach » thu sach, su sach, te sach
cuu tre » cau tren, cau treo
va hanh » van hanh, va thanh, va danh
hieu tu » chieu tu, hieu tuc, hien tu
tu chat » tu phat, tu cham, du chat
cua tre » cua te, cua triet, dua tren
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) or (thuat san)) ky trang xa hoi. hieu tu chat xuc va hanh vi ((cuu tre) OR (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat san)) ky trang xa hoi. hieu tu chat xuc va hanh vi ((cuu tre) OR (cua tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thuat san)) ky trang xa hoi. hieu tu chat xuc va hanh vi ((cuu tre) OR (cua tre))".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat san)) ky trang xa hoi. hieu tu chat xuc va hanh vi ((cuu tre) OR (cua tre))*.