Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien bach » vien bach, thien hach, hien hanh
bach nuoc » bach tuoc, sach nuoc, bich ngoc
bo sach » hoc sach
co sach » cuon sach, hoc sach
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
cua tuc » cua duc, cua thuoc, luat tuc
cua tu » cua su, cua cu, cua te

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((bo sach) or (co sach)) ky nang xa hoi. hieu hien bach nuoc va hanh vi ((cua tu) OR (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((bo sach) OR (co sach)) ky nang xa hoi. hieu hien bach nuoc va hanh vi ((cua tu) OR (cua tuc))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bo sach) or (co sach)) ky nang xa hoi. hieu hien bach nuoc va hanh vi ((cua tu) OR (cua tuc))*".