Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
thanh di » thanh doi, thanh de, thanh do
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
vien da » vien dai
tac va » tac da, tac xa, tuc va
di cua » dai cua, doi cua, de cua
hien » bien, tien, dien

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky nang xa hoi. hieu ((vien da) OR (hien dai)) tac va thanh di cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang xa hoi. hieu ((vien da) OR (hien dai)) tac va thanh di cua triet".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang xa hoi. hieu ((vien da) OR (hien dai)) tac va thanh di cua triet*.