Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
toc sach » hoc sach, doc sach, thuoc sach
lap chau » lai chau, a chau, ha chau
chau tre » chay tren, chau tho, cho tre
nang cau » nang cao, hang cau, nang dau
va cham » va tham
sach ty » sach y, sach tu, sach thu
va chat » van chat, va phat, cao chat
xuc gia » luc gia, tuc gia, quoc gia
duc gia » quoc gia
ty nang » ky nang, ty xang, ty hang

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 ty nang cau hoi. hieu ((va cham) or (va chat)) ((xuc gia) OR (duc gia)) thanh lap chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty nang cau hoi. hieu ((va cham) OR (va chat)) ((xuc gia) OR (duc gia)) thanh lap chau tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ty nang cau hoi. hieu ((va cham) or (va chat)) ((xuc gia) OR (duc gia)) thanh lap chau tre".
• Adding a wildcard symbol may retrieve word variants: toc sach ty nang cau hoi. hieu ((va cham) or (va chat)) ((xuc gia) OR (duc gia)) thanh lap chau tre*.