Perhaps you should try some spelling variations:
phat xuc » chat xuc, phat xuat, phap xu
va thanh » gia thanh, ban thanh, va tinh
va hanh » van hanh, va danh, ban hanh
sach ky » sac ky, sach y, sach kem
nang co » nang cao, nang doc, nang noi
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau tren, cau treo
co hoi » co hoc, co loi
vi cuu » vi luu, vinh cuu

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