Perhaps you should try some spelling variations:
bach luan » sach luan, bach xuan, hoach luan
hieu vien » hieu hien, hieu viec, thieu nien
dinh vai » dinh van, dinh vi, dinh va
vu nang » vuc nang, va nang, vu dang
te sach » toc sach
luan va » luan van, luat va
va dinh » van dinh, va kinh, va tinh
vai cua » dai cua, hai cua, lai cua
y nang » ky nang, ly nang, may nang
v nang » va nang, van nang, voi nang
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) OR (vu nang)))) x hoi. hieu vien bach luan va dinh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (((v nang) OR (vu nang)))) x hoi. hieu vien bach luan va dinh vai cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) or (((v nang) OR (vu nang)))) x hoi. hieu vien bach luan va dinh vai cua tu".
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) or (((v nang) OR (vu nang)))) x hoi. hieu vien bach luan va dinh vai cua tu*.