Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh hai » thanh phan, thanh hoa, thanh san
su triet » su viet, su tien, ve triet
cau tren » cu tren, dau tren, ca tren
soc ban » hoc ban, coc ban, so ban
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
van hoe » van hoa, van hoc, van hieu
van hoi » van hoa, van hoc, van loi
ky lang » ky nang, ky dang, ky tang
sai ky » sac ky
tu sai » tu bai, tu san, tu cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky lang ((van hoi) OR (van hoe)). hieu ve cham soc ban thanh hai ((cau tren) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky lang ((van hoi) OR (van hoe)). hieu ve cham soc ban thanh hai ((cau tren) OR (su triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky lang ((van hoi) OR (van hoe)). hieu ve cham soc ban thanh hai ((cau tren) or (su triet))*".