Perhaps you should try some spelling variations:
thieu bien » thieu nien, tieu bieu, hien bien
bien cam » bien ca, bien cac, bien tam
hanh vai » hanh va, hanh tai, hanh van
cua viet » ca viet, hoa viet, cua vat
sach ky » sach y, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ky) OR (sac ky)) nang xa hoi. thieu bien cam xuc va ((hanh vai) or (hanh vi)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sac ky)) nang xa hoi. thieu bien cam xuc va ((hanh vai) OR (hanh vi)) cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) OR (sac ky)) nang xa hoi. thieu bien cam xuc va ((hanh vai) or (hanh vi)) cua viet".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) OR (sac ky)) nang xa hoi. thieu bien cam xuc va ((hanh vai) or (hanh vi)) cua viet*.