Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, nhanh vi
thanh ve » hanh ve, thanh va, thanh vien
cau tren » cu tren, dau tren, ca tren
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
va cham » va chat, va tham
soc gia » toc gia, hoc gia, quoc gia
so gia » so giai, so giao, ho gia
x hoi » xa hoi, o hoi, x ho

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 x hoi. hieu va cham ((soc gia) or (so gia)) ((thanh vi) OR (thanh ve)) cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. hieu va cham ((soc gia) OR (so gia)) ((thanh vi) OR (thanh ve)) cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. hieu va cham ((soc gia) or (so gia)) ((thanh vi) OR (thanh ve)) cau tren".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu va cham ((soc gia) or (so gia)) ((thanh vi) OR (thanh ve)) cau tren*.