Perhaps you should try some spelling variations:
thien van » thi van
sach thu » sach thue, sach thieu, sach tham
van cham » van chat, van tham, va cham
duc toan » duc ton, duc hoan, duc thang
hanh lam » thanh lap, hanh kem, hanh va
va triet » va thiet, va trien, ve triet
nang xa » nang x, lang xa, nang ma
lam va » nam va, dam va, lam ha

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 y) or (sach thu)) nang xa hoi. thien van cham ((duc toan) OR (duc tan)) hanh lam va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach y) OR (sach thu)) nang xa hoi. thien van cham ((duc toan) OR (duc tan)) hanh lam va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach y) or (sach thu)) nang xa hoi. thien van cham ((duc toan) OR (duc tan)) hanh lam va triet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach y) or (sach thu)) nang xa hoi. thien van cham ((duc toan) OR (duc tan)) hanh lam va triet*.