Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh ve » hanh ve, thanh va, thanh vien
toc sach » hoc sach, doc sach, thuoc sach
nang van » dang van, tang van, lang van
toc sac » toc san, hoc sach, doc sach
van hoi » van hoa, van hoc, van hoe
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
duc van » duc va, duc tan, duc manh
cua tu » cua tuc, cua cu, cua te
ve cam » ve cham, ve cac, va cam
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) or (toc sach)) ky nang van hoi. hieu ve cam duc van thanh ve ((cua tu) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sac) OR (toc sach)) ky nang van hoi. hieu ve cam duc van thanh ve ((cua tu) OR (cua su)).
• Adding a wildcard symbol may retrieve word variants: ((toc sac) or (toc sach)) ky nang van hoi. hieu ve cam duc van thanh ve ((cua tu) or (cua su))*.