Perhaps you should try some spelling variations:
ve triet » va trien, su triet
va triet » va thiet, va trien, cua triet
van dinh » van minh, van dich, va dinh
luc van » luoc van, luu van, duc van
dinh vu » dich vu, dinh ve, dinh cu
tu sach » thu sach, su sach, tu cach
te sach » toc sach
hieu ve » hieu va, hieu van
cam luc » cam xuc, cau luc
ve cam » ve cham, ve cac, va cam
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

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 (te sach)) y nang x hoi. hieu ve cam luc van dinh vu ((va triet) OR (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) y nang x hoi. hieu ve cam luc van dinh vu ((va triet) OR (ve triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) y nang x hoi. hieu ve cam luc van dinh vu ((va triet) OR (ve triet))".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) y nang x hoi. hieu ve cam luc van dinh vu ((va triet) OR (ve triet))*.