Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vai » thanh hai, thanh van, thanh tai
cua triet » cua viet, su triet, va triet
nam duoc » nam thuoc, da duoc, dat duoc
duoc ban » duc ban, quoc ban, buoc ban
sach ky » sach y, sach ty, sach kem
lieu ha » lieu nha, lieu va, liem ha
cua tre » cua te, cuu tre, dua tren
sac ky » cac ky, sai ky
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 ((sach ky) or (sac ky)) nang x hoi. lieu ha nam duoc ban thanh vai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) nang x hoi. lieu ha nam duoc ban thanh vai ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sac ky)) nang x hoi. lieu ha nam duoc ban thanh vai ((cua tre) or (cua triet))*.