Perhaps you should try some spelling variations:
chieu thien » chieu chien, hieu hien
thien hach » thien thanh, hien hanh
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
huu tai » khau tai, huu tuan
xuc va » tuc va, luc va, xac va

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. chieu thien hach ((xuc va) or (duc va)) hanh vi ((huu tri) OR (huu tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. chieu thien hach ((xuc va) OR (duc va)) hanh vi ((huu tri) OR (huu tai)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang xa hoi. chieu thien hach ((xuc va) or (duc va)) hanh vi ((huu tri) OR (huu tai))".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. chieu thien hach ((xuc va) or (duc va)) hanh vi ((huu tri) OR (huu tai))*.