Perhaps you should try some spelling variations:
chua trieu » cua triet, cau trieu, chua thiet
chua tre » chua tri, cua tre, cho tre
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
xuc va » duc va, tuc va, luc va
ve cam » ve cham, ve cac, va cam

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 (thu hoach)) ty nang xa hoi. hieu ve cam xuc va hanh va ((chua tre) OR (chua trieu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu hoach)) ty nang xa hoi. hieu ve cam xuc va hanh va ((chua tre) OR (chua trieu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu hoach)) ty nang xa hoi. hieu ve cam xuc va hanh va ((chua tre) OR (chua trieu))".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu hoach)) ty nang xa hoi. hieu ve cam xuc va hanh va ((chua tre) OR (chua trieu))*.