Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
cham sac » cham soc, pham sach, cap sac
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu vu » hieu va, hieu ve, dieu vu
hieu su » hieu sau, tieu su, hieu so
sac van » cac van, san van, sat van
san cua » sang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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 su)) cham sac van thanh san 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 su)) cham sac van thanh san cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky dang xa hoi. ((hieu vu) OR (hieu su)) cham sac van thanh san cua tre*.