Perhaps you should try some spelling variations:
sach thue » sach thu, sach thieu, sach tham
hanh vai » hanh vi, hanh va, hanh tai
dan hanh » dang hanh, dan khanh, dan thanh
thuc dan » thuc hanh, hoc dan, thuc vat
dau thuc » dan thuc, dai thuc, dam thuc
vai cuu » vai cua
hieu va » lieu va, hieu qua
cuu tre » cua tre, cau tren, cau treo
sach ky » sac ky, sach y, sach ty
nang xa » lang xa, nang ma, mang xa
va dau » va dao

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 ky) or (sach thue)) ((nang xa) OR (nang x)) hoi. hieu va dau thuc dan hanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach thue)) ((nang xa) OR (nang x)) hoi. hieu va dau thuc dan hanh vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (sach thue)) ((nang xa) OR (nang x)) hoi. hieu va dau thuc dan hanh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach thue)) ((nang xa) OR (nang x)) hoi. hieu va dau thuc dan hanh vai cuu tre*.