Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cham cuu » cap cuu, chat cua
ky trang » ke trang, ky trong, ky nang
ban hang » ngan hang
hang vi » hang va, hanh vi, hang di
cam cuc » cam xuc, pham cuc
ky tang » ky nang, ky dang, kho tang
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ((ky trang) OR (ky tang)) xa hoi. lieu va ((cam cuc) or (cham cuu)) ban hang vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ((ky trang) OR (ky tang)) xa hoi. lieu va ((cam cuc) OR (cham cuu)) ban hang vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ((ky trang) OR (ky tang)) xa hoi. lieu va ((cam cuc) or (cham cuu)) ban hang vi cua tre".
• Adding a wildcard symbol may retrieve word variants: toc sach ((ky trang) OR (ky tang)) xa hoi. lieu va ((cam cuc) or (cham cuu)) ban hang vi cua tre*.