Perhaps you should try some spelling variations:
cau phuc » cau truc, chau phu, huu phuc
cau theo » cau thi, cau tao
sach ky » sac ky, sach y, sach ty
hanh de » hanh ve, hanh kem
hanh di » hanh vi, hang di, danh di
phuc va » phuc vu, thuc va, chuc va
hieu ke » hieu kem, chieu ke, hieu ky
lang xa » lang ha, dang xay, lang van
sai ky » sac ky
ke cau » ket cau

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sai ky)) lang xa hoi. hieu ke cau phuc va ((hanh di) OR (hanh de)) cau theo~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (sai ky)) lang xa hoi. hieu ke cau phuc va ((hanh di) OR (hanh de)) cau theo~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sai ky)) lang xa hoi. hieu ke cau phuc va ((hanh di) OR (hanh de)) cau theo*.