Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
sanh ky » hanh ky, sang ky, nganh ky
tuc ban » thuc ban, truc ban, tu ban
cac tuc » cac toc, cac tu, cac tac
hieu ve » hieu va, hieu van
so sanh » do sanh
lang ha » long ha
lang xa » dang xay, lang van
cuu tre » cua tre, cau tren, cau treo
ve cac » va cac, vien cac
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: so sanh ky ((lang xa) OR (lang ha)) hoi. hieu ve cac tuc ban thanh vi cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh ky ((lang xa) OR (lang ha)) hoi. hieu ve cac tuc ban thanh vi cuu tre".
• Adding a wildcard symbol may retrieve word variants: so sanh ky ((lang xa) OR (lang ha)) hoi. hieu ve cac tuc ban thanh vi cuu tre*.