Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh ban » thanh san, thanh van, thanh bac
truc ban » thuc ban, truc dan, truc van
hieu van » hieu va, thien van, lieu va
tuc ban » thuc ban, tu ban, tuc dan
ban cua » ban quan
su sach » so sach
van cam » van nam, van lam, van cau
nang xa » nang x, lang xa, nang ma
vu sach » vu bach, vu khach
y nang » ky nang, ly nang, v nang

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) or (vu sach)) y nang xa hoi. hieu van cam ((tuc ban) OR (truc ban)) thanh ban cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) y nang xa hoi. hieu van cam ((tuc ban) OR (truc ban)) thanh ban cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu sach)) y nang xa hoi. hieu van cam ((tuc ban) OR (truc ban)) thanh ban cua triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) y nang xa hoi. hieu van cam ((tuc ban) OR (truc ban)) thanh ban cua triet*.