Perhaps you should try some spelling variations:
thieu bien » thieu nien, tieu bieu, hien bien
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
le triet » ve triet, le tien, le viet
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cac xuc » cam xuc, chat xuc, cac cuoc
hanh va » hang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang xa hoi. thieu bien ((cac xuc) or (cac nuoc)) va ((hanh va) OR (hanh vi)) le triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. thieu bien ((cac xuc) OR (cac nuoc)) va ((hanh va) OR (hanh vi)) le triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. thieu bien ((cac xuc) or (cac nuoc)) va ((hanh va) OR (hanh vi)) le triet*".