Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va danh, ban hanh
cua tre » cua te, cuu tre, cua triet
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
di cua » dai cua, doi cua, de cua

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 ty) or (sac ky)) nang xa hoi. lieu va cam xuc ((va hanh) OR (va thanh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sac ky)) nang xa hoi. lieu va cam xuc ((va hanh) OR (va thanh)) di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) or (sac ky)) nang xa hoi. lieu va cam xuc ((va hanh) OR (va thanh)) di cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sac ky)) nang xa hoi. lieu va cam xuc ((va hanh) OR (va thanh)) di cua tre*.