Perhaps you should try some spelling variations:
thuoc ban » thuoc tan, thuoc dang, thu ban
cua triet » cua viet, su triet, va triet
thuc ban » thuc dan, thu ban, thuc van
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao
va cua » va chua, via cua, ca 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 y nang xa hoi. hieu va cam ((thuc ban) OR (thuoc ban)) hang va cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu va cam ((thuc ban) OR (thuoc ban)) hang va cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu va cam ((thuc ban) OR (thuoc ban)) hang va cua triet*.