Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa
thu sach » tu sach, thuat sach, thuoc sach
thu sac » thu san, thu xac, thu dac
hieu va » lieu va, hieu qua
va giao » van giao, va giai, va gia
cuu tre » cua tre, cau tren, cau treo
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 sac) or (thu sach)) ky nang x hoi. hieu va giao duc va ((thanh hai) OR (thanh san)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sac) OR (thu sach)) ky nang x hoi. hieu va giao duc va ((thanh hai) OR (thanh san)) cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sac) or (thu sach)) ky nang x hoi. hieu va giao duc va ((thanh hai) OR (thanh san)) cuu tre*".