Perhaps you should try some spelling variations:
thieu nien » thien nhien
su triet » su viet, su tien, ve triet
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
hanh tai » thanh tai, hang tai, han tai
tu sach » thu sach, su sach, te sach
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
cac xuc » cam xuc, chat xuc, cac cuoc
sach ty » sach y, sach tu, sach thu
va hanh » van hanh, va thanh, va danh

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty nang xa hoi. thieu nien ((cac xuc) or (cac nuoc)) va hanh tai ((su triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. thieu nien ((cac xuc) OR (cac nuoc)) va hanh tai ((su triet) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. thieu nien ((cac xuc) or (cac nuoc)) va hanh tai ((su triet) or (va thiet))*.