Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh lai » hanh lam, hanh tai, thanh lap
chau tre » chay tren, chau tho, cho tre
sach ty » sach y, sach tu, sach thu
va cham » va chat, va tham
xuc ban » cuc ban, quoc ban, xuat ban
duc ban » duc tan, duc van, dua ban
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
ve cai » va cai, ve cac, ve tai

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