Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
thu sac » thu sach, thu san, thu xac
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
xa hanh » xa thanh, xa khanh, va hanh
cua tre » cuu tre, cua triet, dua tren
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cai
va cao » va cac, va co, va dao
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sac ky lang xa hoi. hieu ((va cam) or (va cao)) tuc xa hanh dai ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky lang xa hoi. hieu ((va cam) OR (va cao)) tuc xa hanh dai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sac ky lang xa hoi. hieu ((va cam) or (va cao)) tuc xa hanh dai ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: thu sac ky lang xa hoi. hieu ((va cam) or (va cao)) tuc xa hanh dai ((cua tre) OR (cua te))*.