Perhaps you should try some spelling variations:
thanh hoa » thanh pho
toc sach » hoc sach, doc sach, thuoc sach
thanh ha » thanh hai, nhanh ha, thanh phan
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
bo sach » co sach, hoc sach
ma hoi » mai hoi, xa hoi, ma hoa
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) or (bo sach)) ky nang ma hoi. hieu ve cam xuc ban ((thanh ha) OR (thanh hoa)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (bo sach)) ky nang ma hoi. hieu ve cam xuc ban ((thanh ha) OR (thanh hoa)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) or (bo sach)) ky nang ma hoi. hieu ve cam xuc ban ((thanh ha) OR (thanh hoa)) cua tre*".