Perhaps you should try some spelling variations:
hanh giau » thanh gian, danh gia, anh giao
giau cua » gian cua, gia cua, dieu cua
van hanh » van thanh, ban hanh, van anh
van hai » van ha, van chat, van phan
duc van » duc va, duc tan, duc manh
van cau » van dau, van hau, van chat
sach ky » sac ky, sach y, sach kem
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cuu tre, cua triet
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach ky) OR (sach ty)) nang x hoi. hieu ((van cau) or (van hai)) duc van hanh giau cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ky) OR (sach ty)) nang x hoi. hieu ((van cau) OR (van hai)) duc van hanh giau cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach ky) OR (sach ty)) nang x hoi. hieu ((van cau) or (van hai)) duc van hanh giau cua tre".
• Adding a wildcard symbol may retrieve word variants: thu ((sach ky) OR (sach ty)) nang x hoi. hieu ((van cau) or (van hai)) duc van hanh giau cua tre*.