Perhaps you should try some spelling variations:
nguoi sach » nguoi san, nuoc sach
cua triet » cua viet, su triet, va triet
cau phuc » cau truc, chau phu, huu phuc
phuc van » thuc van, phuc va, chuc van
van hanh » van thanh, ban hanh, van anh
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, dua tren
ve cau » ke cau, va cau, ve cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: nguoi sach ky nang xa hoi. hieu ve cau phuc van hanh di ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nguoi sach ky nang xa hoi. hieu ve cau phuc van hanh di ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: nguoi sach ky nang xa hoi. hieu ve cau phuc van hanh di ((cua tre) OR (cua triet))*.