Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hang tai » dung tai
ky lang » ky dang, ky tang, tay lang
van hoi » van hoa, van hoc, van hoe
cam tuc » cam xuc, cam tu, nam thuc
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa

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 ((ky lang) OR (ky nang)) van hoi. lieu va cam tuc va ((hang tai) or (hang va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ky lang) OR (ky nang)) van hoi. lieu va cam tuc va ((hang tai) OR (hang va)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((ky lang) OR (ky nang)) van hoi. lieu va cam tuc va ((hang tai) or (hang va)) cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ((ky lang) OR (ky nang)) van hoi. lieu va cam tuc va ((hang tai) or (hang va)) cua tre*.