Perhaps you should try some spelling variations:
chay tren » thai tren, ca tren, cau tren
chau tre » chau tho, cho tre, cau tra
hanh lam » thanh lap, hanh kem, hanh va
thu sach » tu sach, thuat sach, thuoc sach
hieu ve » hieu va, hieu van
xuc ban » cuc ban, quoc ban, xuat ban
sach ty » sach y, sach tu, sach thu
duc ban » duc tan, duc van, dua ban
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
ve cam » ve cham, ve cac, va cam
ma hoi » mai hoi, xa hoi, ma hoa

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