Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
dang tay » dang xay, dung tay, dan tay
te sach » toc sach
nam tuc » nam thuc, nam truc, nam thuoc
tay hoi » tay ho, tao hoi, tay thai
hieu ve » hieu va, hieu van
sach o » sach lo, sac o, sach y
nam tu » nam thu, nam thuc
o dang » xo dang, do dang, so dang
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach o dang tay hoi. hieu ve ((nam tuc) or (nam tu)) ban thanh ((vi cua) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach o dang tay hoi. hieu ve ((nam tuc) OR (nam tu)) ban thanh ((vi cua) OR (dai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: te sach o dang tay hoi. hieu ve ((nam tuc) or (nam tu)) ban thanh ((vi cua) or (dai cua)) tre*.