Perhaps you should try some spelling variations:
thanh hoa » thanh pho
thanh vai » thanh hai, thanh van, thanh tai
nam thuc » nam thuoc, am thuc, nam thu
thuc tai » thuc thai, thuoc tai, thuc tap
hieu van » hieu va, thien van, lieu va
tu cach » tu cac
su sach » so sach, vu sach
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: ((tu cach) or (su sach)) ky nang x hoi. hieu van nam thuc tai ((thanh vai) or (thanh hoa)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su sach)) ky nang x hoi. hieu van nam thuc tai ((thanh vai) OR (thanh hoa)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (su sach)) ky nang x hoi. hieu van nam thuc tai ((thanh vai) or (thanh hoa)) cuu tre*.