Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
thanh di » thanh doi, thanh de, thanh do
va thanh » gia thanh, ban thanh, va tinh
nang xa » lang xa, nang ma, mang xa
van bao » van ban, van dao
bao luc » bao thuc
so sach » so sanh, bo sach, co sach
su sach » vu sach
luc va » duc va, tuc va, loc va
di cua » dai cua, doi cua, de 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) or (so sach)) ky ((nang xa) OR (nang x)) hoi. hieu van bao luc va thanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky ((nang xa) OR (nang x)) hoi. hieu van bao luc va thanh di cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sach)) ky ((nang xa) OR (nang x)) hoi. hieu van bao luc va thanh di cua triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) ky ((nang xa) OR (nang x)) hoi. hieu van bao luc va thanh di cua triet*.