Perhaps you should try some spelling variations:
thuc dang » thuoc dang, thuc dan, thuc dung
nham thuc » nhan thuc, nam thuc, nham thu
dang tinh » dang dinh, dang sinh, dang vinh
toc sach » hoc sach, doc sach, thuoc sach
su triet » su viet, su tien, ve triet
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
va nham » va cham, va tham, va nha
tinh vi » trinh vi, tinh voi, tinh va
vi su » va su, ve su, ki su

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) OR (toc sach)) ky lang xa hoi. lieu va nham thuc dang tinh vi su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ky lang xa hoi. lieu va nham thuc dang tinh vi su triet".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) ky lang xa hoi. lieu va nham thuc dang tinh vi su triet*.