Perhaps you should try some spelling variations:
hien bach » vien bach, thien hach, hien hanh
hieu hien » bieu hien, dieu hien, chieu chien
bach nuoc » bach tuoc, sach nuoc, bich ngoc
co sach » cuon sach, hoc sach
bo sach » hoc sach
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va dan, va hanh
vai cua » dai cua, hai cua, lai cua
vi cua » di cua

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

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