Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
toc sac » toc sach, toc san, hoc sach
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
hieu ve » hieu va, hieu van
duc ban » duc van, dua ban, duc man
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
cua te » cua tu
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sac ky lang ha noi. hieu ve cam ((duc ban) OR (duc tan)) thanh vi ((cua te) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky lang ha noi. hieu ve cam ((duc ban) OR (duc tan)) thanh vi ((cua te) OR (cua su))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sac ky lang ha noi. hieu ve cam ((duc ban) OR (duc tan)) thanh vi ((cua te) or (cua su))*".