Perhaps you should try some spelling variations:
thanh hiep » thanh hien, thanh thieu, thanh vien
thien van » thi van
hiep cua » tiep cua, hieu cua, hien cua
tu sach » thu sach, su sach, te sach
ky tang » ky dang, kho tang, ky trong
van cam » van nam, van lam, van cau
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
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 ((ky tang) OR (ky nang)) xa hoi. thien van cam ((xuc va) or (tuc va)) thanh hiep cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ky tang) OR (ky nang)) xa hoi. thien van cam ((xuc va) OR (tuc va)) thanh hiep cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ky tang) OR (ky nang)) xa hoi. thien van cam ((xuc va) or (tuc va)) thanh hiep cua te*".