Perhaps you should try some spelling variations:
hoc cac » hoc cao
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
vi cua » vai cua, di cua
cua te » cua tu
cac y » cac ky, cac _, cap y

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc cac y nang xa hoi. hieu va ((cam duc) or (giao duc)) va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc cac y nang xa hoi. hieu va ((cam duc) OR (giao duc)) va hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: hoc cac y nang xa hoi. hieu va ((cam duc) or (giao duc)) va hanh vi cua te*.