Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
thuc ban » thuoc ban, thuc dan, thu ban
ban danh » ban doanh, ban hanh, ban dan
gian cua » gian xu, ban cua
tu sach » su sach, te sach, tu cach
hieu va » lieu va, hieu qua
via cua » gia cua, giau cua, rija cua
x hoi » xa hoi, o hoi, x ho
va am » va lam, va cam

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) or (thu sach)) ky nang x hoi. hieu va am thuc ban danh ((via cua) OR (gian cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang x hoi. hieu va am thuc ban danh ((via cua) OR (gian cua)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) ky nang x hoi. hieu va am thuc ban danh ((via cua) OR (gian cua)) triet*".