Perhaps you should try some spelling variations:
thieu nien » thien nhien
cua triet » cua viet, su triet, va triet
nien cac » vien cac, dien cac, bien cac
nang xa » nang x, lang xa, nang ma
cac duc » cac du, cao duc, cac dac
han tai » hang tai, nhan tai, van tai
cua tre » cua te, dua tren, cua thep
cuu tre » cau tren, cau treo
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
va han » va phan, van han, va hanh

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 nang xa hoi. thieu nien cac duc va han tai ((((cua tre) or (cuu tre))) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. thieu nien cac duc va han tai ((((cua tre) OR (cuu tre))) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. thieu nien cac duc va han tai ((((cua tre) or (cuu tre))) or (cua triet))*.