Perhaps you should try some spelling variations:
bach luan » sach luan, bach xuan, hoach luan
hieu vien » hieu hien, hieu viec, thieu nien
te sach » toc sach
luan va » luan van, luat va
va dinh » van dinh, va kinh, va tinh
dinh va » dinh van, dinh ve, tinh va
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
va cua » va chua, via cua, ca cua
cua tu » cua tuc, cua su, cua cu
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: te sach ((y nang) or (v nang)) x hoi. hieu vien bach luan va dinh va cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (v nang)) x hoi. hieu vien bach luan va dinh va cua tu.
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) or (v nang)) x hoi. hieu vien bach luan va dinh va cua tu*.