Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
ban thanh » ban hanh, ban hang
va triet » va thiet, va trien, ve triet
sach tu » sach thu, cach tu, sach uu
nang xa » nang x, lang xa, nang ma
sach ty » sach y, sach thu, xach tay
hieu va » lieu va, hieu qua
cam cuc » cam xuc, cham cuu, pham cuc
cuc ban » cua ban, cac ban, cuu ban
sai ky » sac ky
va cam » va cham, va cac, va cao
dai va » mai va

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 ty) OR (sach tu))) or (sai ky)) nang xa hoi. hieu va cam cuc ban thanh dai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((((sach ty) OR (sach tu))) OR (sai ky)) nang xa hoi. hieu va cam cuc ban thanh dai va triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((((sach ty) OR (sach tu))) or (sai ky)) nang xa hoi. hieu va cam cuc ban thanh dai va triet*".