Perhaps you should try some spelling variations:
thanh lay » thanh lap, thanh tay, thanh lam
ban thanh » ban hanh, ban hang
su triet » su viet, su tien
ve triet » va trien
hieu van » hieu va, thien van, lieu va
nam cuc » nam cac, nam cua, nam thuc
cuc ban » cua ban, cac ban, cuu ban
sach ty » sach y, sach tu, sach thu
su sach » so sach, vu sach
cua te » cua tu
xang x » nang x

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty xang x ho. hieu van nam cuc ban thanh lay ((cua te) or (((su triet) or (ve triet))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty xang x ho. hieu van nam cuc ban thanh lay ((cua te) OR (((su triet) OR (ve triet)))).
• Adding a wildcard symbol may retrieve word variants: su sach ty xang x ho. hieu van nam cuc ban thanh lay ((cua te) or (((su triet) or (ve triet))))*.