Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
manh hai » lanh hai, minh hai, thanh hai
so sanh » do sanh
hai cua » thai cua, dai cua, hoi cua
va manh » van manh, va danh, va hanh
truc va » thuc va, thuc vat, trung va
van cau » van hau, van chat, toan cau
van dau » van dao, phan dau
nang ma » tang ma, sang ma, nang cao
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: ((so sanh) or (vu khach)) ky nang ma hoi. thien ((van cau) or (van dau)) truc va manh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sanh) OR (vu khach)) ky nang ma hoi. thien ((van cau) OR (van dau)) truc va manh hai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((so sanh) or (vu khach)) ky nang ma hoi. thien ((van cau) or (van dau)) truc va manh hai cua tre*.