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