Perhaps you should try some spelling variations:
hien bach » vien bach, thien hach, hien hanh
bach quan » bach qua, bach xuan, sach quan
bieu hien » dieu hien, dieu khien, bien phien
va hang » van hang, va nang, va lang
quan va » quan vi, quan ha, luan va
tu sach » thu sach, su sach, tu cach
nang xa » nang x, lang xa, nang ma
te sach » toc sach
va cuu » va chu, va huu
va cau » van cau, va cac, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (te sach)) ky nang xa hoi. bieu hien bach quan va hang ((va cuu) OR (va cau)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang xa hoi. bieu hien bach quan va hang ((va cuu) OR (va cau)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ky nang xa hoi. bieu hien bach quan va hang ((va cuu) OR (va cau)) tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang xa hoi. bieu hien bach quan va hang ((va cuu) OR (va cau)) tre*.