Perhaps you should try some spelling variations:
ve triet » va trien, su triet
toc sac » toc sach, hoc sach, doc sach
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
ma hoi » mai hoi, xa hoi, ma hoa
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
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) OR (toc san)) ky nang ma hoi. hieu va cam xuc va hanh vi ((cua te) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sac) OR (toc san)) ky nang ma hoi. hieu va cam xuc va hanh vi ((cua te) OR (ve triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sac) OR (toc san)) ky nang ma hoi. hieu va cam xuc va hanh vi ((cua te) or (ve triet))".
• Adding a wildcard symbol may retrieve word variants: ((toc sac) OR (toc san)) ky nang ma hoi. hieu va cam xuc va hanh vi ((cua te) or (ve triet))*.