Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
kho tang » cao tang
ky tang » ky nang, ky dang, ky trong
duc van » duc va, duc tan, duc manh
hai cua » thai cua, hoi cua, lai cua
su sac » su sach, su cac, su xac
hieu d » dieu d, hieu 2, hieu _
d pham » d phan

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 tang) or (kho tang)) xa hoi. hieu d pham duc van thanh ((hai cua) OR (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ((ky tang) OR (kho tang)) xa hoi. hieu d pham duc van thanh ((hai cua) OR (dai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ((ky tang) or (kho tang)) xa hoi. hieu d pham duc van thanh ((hai cua) OR (dai cua)) te".
• Adding a wildcard symbol may retrieve word variants: su sac ((ky tang) or (kho tang)) xa hoi. hieu d pham duc van thanh ((hai cua) OR (dai cua)) te*.