Perhaps you should try some spelling variations:
tinh dieu » trinh dieu, tinh dien, vinh dieu
dieu cua » dieu tra
su sach » so sach, vu sach
van cac » van hac, van cau, dan cac
van bac » van ban, van bao, van hac
va tinh » may tinh
y nang » ly nang, v nang, may nang
xuc va » duc va, tuc va, luc va
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: su sach ((y nang) OR (ky nang)) xa hoi. hieu ((van cac) or (van bac)) xuc va tinh dieu cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y nang) OR (ky nang)) xa hoi. hieu ((van cac) OR (van bac)) xuc va tinh dieu cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y nang) OR (ky nang)) xa hoi. hieu ((van cac) or (van bac)) xuc va tinh dieu cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ((y nang) OR (ky nang)) xa hoi. hieu ((van cac) or (van bac)) xuc va tinh dieu cua te*.