Perhaps you should try some spelling variations:
hien sach » dien sach, kien sach, thien hach
bieu hien » dieu hien, dieu khien, bien phien
sach duoc » sach nuoc, sach dao, sach dung
trinh han » trinh quan
va trinh » van trinh, va tinh, lap trinh
tu sach » thu sach, su sach, tu cach
te sach » toc sach
nang xa » nang x, lang xa, nang ma
duoc va » nuoc va, duc va, duoc 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: ((tu sach) OR (te sach)) ky nang xa hoi. bieu hien sach duoc va trinh han huu 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 sach duoc va trinh han huu tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (te sach)) ky nang xa hoi. bieu hien sach duoc va trinh han huu tre*.