Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
hieu van » hieu va, thien van, lieu va
lang xa » lang ha, dang xay, lang van
ban soc » ban sac, dan soc, ban sach
van anh » tuan anh, van minh
cuu tre » cua tre, cau tren, cau treo
sac ky » sai ky
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat ((sac ky) or (cac ky)) lang xa hoi. hieu van ban soc ((van anh) or (van thanh)) vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat ((sac ky) OR (cac ky)) lang xa hoi. hieu van ban soc ((van anh) OR (van thanh)) vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: thuat ((sac ky) or (cac ky)) lang xa hoi. hieu van ban soc ((van anh) or (van thanh)) vi cuu tre*.