Perhaps you should try some spelling variations:
khao hoat » khao sat, cao hoat, khao ha
van thanh » ban thanh, van tuan
hoat van » hoa van, hat van, hoang van
ban quan » van quan
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu vu » hieu va, hieu ve, hieu su
vu khao » va khao, vu kham, vu khac
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 khao hoat van thanh ((ban cua) OR (ban quan)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky dang xa hoi. hieu vu khao hoat van thanh ((ban cua) OR (ban quan)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky dang xa hoi. hieu vu khao hoat van thanh ((ban cua) OR (ban quan)) tre*.