Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
cham sat » cham mat, cham soc, khao sat
song cua » cong cua, dong cua, huong cua
hang cua » mang cua, hang ca, huong cua
sat van » sat va, hat van, hoat van
hieu va » lieu va, hieu qua
hieu vu » hieu ve, hieu su, dieu vu
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
sac ky » cac ky, sai ky
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky dang xa hoi. ((hieu vu) OR (hieu va)) cham sat van thanh ((hang cua) or (song cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky dang xa hoi. ((hieu vu) OR (hieu va)) cham sat van thanh ((hang cua) OR (song cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky dang xa hoi. ((hieu vu) OR (hieu va)) cham sat van thanh ((hang cua) or (song cua)) tre*".