Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
chien bach » vien bach, chien dich, chiet tach
sach ky » sac ky, sach y, sach ty
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
huu tre » huu tri, cuu tre, huu them
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
va huu » vu huu

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 nang xa hoi. chieu ((chien bach) OR (thien hach)) ((xuc va) or (luc va)) hang va huu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. chieu ((chien bach) OR (thien hach)) ((xuc va) OR (luc va)) hang va huu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. chieu ((chien bach) OR (thien hach)) ((xuc va) or (luc va)) hang va huu tre".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. chieu ((chien bach) OR (thien hach)) ((xuc va) or (luc va)) hang va huu tre*.