Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
van tuan » van quan, van ban, anh tuan
cham xuc » cam xuc, chat xuc, cham soc
cua tre » cua te, cua triet, dua tren
xuc van » duc van, luc van, vuc van
hieu su » hieu sau, tieu su, hieu so
su cham » su pham, tu cham, vu cham
tang ha » lang ha, tang ma, trung ha
ky tang » ky nang, ky dang, kho tang
tu sach » su sach, te sach, tu cach
cuu tre » cau tren, cau treo

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) OR (tu sach)) ky tang ha noi. hieu su cham xuc van tuan le ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ky tang ha noi. hieu su cham xuc van tuan le ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (tu sach)) ky tang ha noi. hieu su cham xuc van tuan le ((cua tre) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (tu sach)) ky tang ha noi. hieu su cham xuc van tuan le ((cua tre) or (cuu tre))*.