Perhaps you should try some spelling variations:
thien van » thi van
hanh hai » thanh hai, nhanh hai, hang hai
thuc day » thuc dan, thuc vat
tu sach » thu sach, su sach, tu cach
hai cua » thai cua, dai cua, hoi cua
truc va » thuc va, thuc vat, trung va
van cau » van dau, van hau, van chat
nang ma » tang ma, sang ma, nang cao
te sach » toc sach
cua tre » cua te, cuu tre, cua triet
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: ((tu sach) or (te sach)) ky nang ma hoi. thien van cau ((truc va) or (thuc day)) hanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang ma hoi. thien van cau ((truc va) OR (thuc day)) hanh hai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang ma hoi. thien van cau ((truc va) or (thuc day)) hanh hai cua tre*.