Perhaps you should try some spelling variations:
nang dieu » dang dieu, sang dieu, bang dieu
dieu cua » dieu tra
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
va nang » van nang, da nang, cam nang
xuc va » duc va, tuc va, luc va
ve cac » vien cac
cua te » cua tu

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) or (su sach)) ky nang xa hoi. hieu ((ve cac) OR (va cac)) xuc va nang dieu cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang xa hoi. hieu ((ve cac) OR (va cac)) xuc va nang dieu cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ky nang xa hoi. hieu ((ve cac) OR (va cac)) xuc va nang dieu cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang xa hoi. hieu ((ve cac) OR (va cac)) xuc va nang dieu cua te*.