Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
luc van » luoc van, luu van, duc van
san cua » sang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho

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 nang x hoi. hieu ((ve cam) OR (ve cac)) luc van thanh san cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang x hoi. hieu ((ve cam) OR (ve cac)) luc van thanh san cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang x hoi. hieu ((ve cam) OR (ve cac)) luc van thanh san cua tre*.