Perhaps you should try some spelling variations:
lang phi » lang phu, lang chai, lang ha
ban lang » ban hang, ba lang, ban dang
vu sach » vu bach, su sach, vu khach
ve cham » va cham, ve chat, vu cham
phi cua » phai cua, chi cua, khi cua
duc ban » duc tan, duc van, dua ban
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
ca phoi » cap phoi, cay phoi, gap phoi
dang ca » dang cac, dan ca, hang ca
ky dang » ky nang, ky danh
ve cam » ve cac, va cam, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky dang ca phoi. hieu ((ve cam) or (ve cham)) duc ban lang phi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky dang ca phoi. hieu ((ve cam) OR (ve cham)) duc ban lang phi cua tre*.