Perhaps you should try some spelling variations:
dang thai » dang hai, dang khai, lang thai
thuat sac » thuat sach, thuat san, thuat tac
dang thi » hoang thi, dang khoi
nang xa » nang x, lang xa, nang ma
van bac » van ban, van hac, dan bac
van bao » van ban, van dao
cua tre » cua te, cuu tre, cua triet
sac ky » cac ky, sai ky

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sac ky nang xa hoi. thi ((van bac) OR (van bao)) nuoc va ((dang thai) OR (dang thi)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sac ky nang xa hoi. thi ((van bac) OR (van bao)) nuoc va ((dang thai) or (dang thi)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: thuat sac ky nang xa hoi. thi ((van bac) OR (van bao)) nuoc va ((dang thai) or (dang thi)) cua tre*.