Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
vien cac » vien bach, vien dai, vien da
hai cua » thai cua, dai cua, hoi cua
vai cua » dai cua, lai cua, bai cua
xuc van » duc van, luc van, xuc ban
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
ve cac » va cac
su sac » su sach, su cac, su xac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky lang xa hoi. hieu ((ve cac) OR (vien cac)) xuc van thanh ((vai cua) or (hai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky lang xa hoi. hieu ((ve cac) OR (vien cac)) xuc van thanh ((vai cua) OR (hai cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky lang xa hoi. hieu ((ve cac) OR (vien cac)) xuc van thanh ((vai cua) or (hai cua)) tre*".