Perhaps you should try some spelling variations:
van cham » van tham, va cham, van pham
van chat » cao chat
thanh ve » hanh ve, thanh va, thanh vien
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
soc gia » toc gia, hoc gia, so gia
cu tren » tu tren, dua tren
ve cu » ve cau, ve chu, ve cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang xa hoi. hieu ((van cham) OR (van chat)) soc gia thanh ve cu tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu ((van cham) OR (van chat)) soc gia thanh ve cu tren".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu ((van cham) OR (van chat)) soc gia thanh ve cu tren*.