Perhaps you should try some spelling variations:
vat thanh » dat thanh, gat thanh, tat thanh
cua triet » cua viet, su triet, va triet
thanh va » thanh van, hanh va, thanh ha
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
vu pham » su pham, vi pham, v pham
vu kham » vu khanh
va cua » va chua, via cua, ca cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky dang xa hoi. hieu ((vu pham) or (vu kham)) thuc vat thanh va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dang xa hoi. hieu ((vu pham) OR (vu kham)) thuc vat thanh va cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach ky dang xa hoi. hieu ((vu pham) or (vu kham)) thuc vat thanh va cua triet*.