Perhaps you should try some spelling variations:
thi cham » thi hai, toc cham, thi ha
sac tuan » sach luan, mach tuan, sach quan
cua tre » cua te, cuu tre, cua triet
vai cua » dai cua, hai cua, lai cua
anh vai » anh va, anh bai, anh van
tu cham » toc cham
ky dang » ky nang, ky danh
ky lang » ky nang, ky tang, tay lang
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 lang) OR (ky dang)) xa hoi. hieu ((tu cham) or (thi cham)) sac tuan anh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ((ky lang) OR (ky dang)) xa hoi. hieu ((tu cham) OR (thi cham)) sac tuan anh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ((ky lang) OR (ky dang)) xa hoi. hieu ((tu cham) or (thi cham)) sac tuan anh vai cua tre*".