Perhaps you should try some spelling variations:
chau tre » chay tren, chau tho, cho tre
tai chau » lai chau, mai chau, hai chau
hanh tai » thanh tai, hang tai, han tai
thuc va » thuc vat, thuc dan, thuc day
sach ky » sac ky, sach y, sach ty
tu sach » thu sach, su sach, te sach
mai hoi » mai khoi, dai hoi, lai hoi
ky dang » ky nang, ky danh
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
ma hoi » xa hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky dang ((ma hoi) OR (mai hoi)). hieu va cam ((xuc va) or (thuc va)) hanh tai chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky dang ((ma hoi) OR (mai hoi)). hieu va cam ((xuc va) OR (thuc va)) hanh tai chau tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky dang ((ma hoi) OR (mai hoi)). hieu va cam ((xuc va) or (thuc va)) hanh tai chau tre*".