Perhaps you should try some spelling variations:
thien van » thi van
thac toc » cac toc, thac cac, thi toc
su sach » so sach, vu sach
vai cua » dai cua, lai cua, bai cua
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hac tuc » thai tuc
sach ky » sac ky, sach y, sach ty
hai cua » thai cua, dai cua, hoi cua

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 dang xa hoi. thien van ((hac tuc) OR (thac toc)) gia thanh ((vai cua) or (hai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky dang xa hoi. thien van ((hac tuc) OR (thac toc)) gia thanh ((vai cua) OR (hai cua)) te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky dang xa hoi. thien van ((hac tuc) OR (thac toc)) gia thanh ((vai cua) or (hai cua)) te*".