Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
lang hoa » hang hoa, lang ha, nang hoa
hieu van » hieu va, thien van, lieu va
thanh vi » hanh vi, thanh va, thanh ve
toc sac » toc sach, toc san, hoc sach
ky lang » ky nang, ky dang, ky tang
hoa hoi » khoa hoi, hoa hoc, hoa doi
cam duc » cao duc, pham duc, nam duoc
sac ky » cac ky, sai ky
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. hieu van ((cam duc) OR (cam xuc)) 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. hieu van ((cam duc) OR (cam xuc)) 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. hieu van ((cam duc) OR (cam xuc)) ban thanh vi ((cua te) or (qua su))*".