Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
luu tre » luu tru, cuu tre
va hanh » van hanh, va thanh, va danh
van cam » van nam, van lam, van cau
tu sach » thu sach, su sach, te sach
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
vu sach » vu bach, su sach, vu khach
luy tre » luyen tre
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (vu sach)) ky lang xa hoi. hieu van cam xuc va hanh vi ((luu tre) or (luy tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (vu sach)) ky lang xa hoi. hieu van cam xuc va hanh vi ((luu tre) OR (luy tre)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (vu sach)) ky lang xa hoi. hieu van cam xuc va hanh vi ((luu tre) or (luy tre))*.