Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, cao hoc, tao hoi
hieu vu » hieu va, hieu ve, hieu su
cau cua » cau qua, ca cua, cu cua
co hoi » co hoc, co loi
vu cam » vu cham, vu cao, va cam
xuc va » duc va, tuc va, luc va
va dan » ca dan, va dao, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang ((cao hoi) or (co hoi)). hieu vu cam xuc va dan ((cau cua) or (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ((cao hoi) OR (co hoi)). hieu vu cam xuc va dan ((cau cua) OR (dai cua)) te.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ((cao hoi) or (co hoi)). hieu vu cam xuc va dan ((cau cua) or (dai cua)) te*.