Perhaps you should try some spelling variations:
hien sach » dien sach, kien sach, thien hach
bieu hien » dieu hien, dieu khien, bien phien
trinh han » trinh quan
thu sach » tu sach, thuat sach, thuoc sach
va trinh » van trinh, va tinh, lap trinh
te sach » toc sach
nang xa » nang x, lang xa, nang ma
han huu » phan huu, san huu, tran huu
huu tre » huu tri, cuu tre, huu them

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (te sach)) ky nang xa hoi. bieu hien sach dung va trinh han huu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (te sach)) ky nang xa hoi. bieu hien sach dung va trinh han huu tre.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (te sach)) ky nang xa hoi. bieu hien sach dung va trinh han huu tre*.