Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
toc sac » toc sach, toc san, hoc sach
duc ban » duc tan, duc van, dua ban
cam duc » cam xuc, cao duc, pham duc
hieu ve » hieu va, hieu van
hoa doi » hoa dai, hoc doi, xoa doi
hoa hoi » khoa hoi, hoa hoc, hoc hoi
ky lang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
cua te » cua tu

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 ((hoa hoi) OR (hoa doi)). hieu ve cam duc ban thanh vi ((cua te) or (qua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky lang ((hoa hoi) OR (hoa doi)). hieu ve cam duc ban thanh vi ((cua te) OR (qua su))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sac ky lang ((hoa hoi) OR (hoa doi)). hieu ve cam duc ban thanh vi ((cua te) or (qua su))*".