Perhaps you should try some spelling variations:
danh bat » doanh bat, anh bai, dinh ba
danh sai » dung sai, danh dau, hanh san
te sach » toc sach
thu xac » thau xay
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
hiem he » hiem xe, hieu he, thien he
nang co » nang doc, nang noi, nang hoc
he nam » ha nam, nghe nam

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky ((nang co) OR (nang cao)) hoi. hiem he nam thu xac ((danh sai) or (danh bat)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((nang co) OR (nang cao)) hoi. hiem he nam thu xac ((danh sai) OR (danh bat)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((nang co) OR (nang cao)) hoi. hiem he nam thu xac ((danh sai) or (danh bat)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky ((nang co) OR (nang cao)) hoi. hiem he nam thu xac ((danh sai) or (danh bat)) cua tre*.