Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
ve chat » va chat, van chat
vai cuu » vai cua
tuc van » thuc van, truc van, tuc va
cuu tre » cua tre, cau tren, cau treo
sach ky » sac ky, sach ty, sach kem
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac

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) or (sach y)) nang ma hoi. hieu ((ve cac) or (ve chat)) tuc van hanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) nang ma hoi. hieu ((ve cac) OR (ve chat)) tuc van hanh vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) nang ma hoi. hieu ((ve cac) or (ve chat)) tuc van hanh vai cuu tre*.