Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
xa thanh » va thanh, ha thanh, ta thanh
tu sach » thu sach, su sach, te sach
ve chat » va chat, van chat
van cuu » van cau, van chu, van cu
va cham » va chat, va tham
cuu tre » cua tre, cau tren, cau treo
sach ty » sach y, sach tu, sach thu
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: tu sach ty nang ma hoi. hieu ((ve cam) or (((ve chat) or (va cham)))) tuc xa thanh van cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang ma hoi. hieu ((ve cam) OR (((ve chat) OR (va cham)))) tuc xa thanh van cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang ma hoi. hieu ((ve cam) or (((ve chat) or (va cham)))) tuc xa thanh van cuu tre*.