Perhaps you should try some spelling variations:
sach tru » sach truc, sach thu, sach tu
tru nang » tra nang, tri nang, truc nano
thi cham » thi hai, toc cham, thi ha
ve triet » va trien, su triet
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
tu cham » toc cham
va hanh » van hanh, va thanh, va danh
hanh de » hanh ve, hanh kem

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach tru nang xa hoi. chieu ((tu cham) OR (thi cham)) duc va hanh de ve triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach tru nang xa hoi. chieu ((tu cham) OR (thi cham)) duc va hanh de ve triet".
• Adding a wildcard symbol may retrieve word variants: so sach tru nang xa hoi. chieu ((tu cham) OR (thi cham)) duc va hanh de ve triet*.