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