Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh vai » thanh hai, thanh van, thanh tai
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
va cham » va chat, va tham
su sach » so sach
vai cua » dai cua, hai cua, lai cua
vu sach » vu bach, vu khach
cuc va » chuc va, duc va, cu va
cuu va » cuu van, cuu ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) OR (su sach)) ty nang xa hoi. lieu va cham ((cuc va) or (cuu va)) thanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (su sach)) ty nang xa hoi. lieu va cham ((cuc va) OR (cuu va)) thanh vai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (su sach)) ty nang xa hoi. lieu va cham ((cuc va) or (cuu va)) thanh vai cua triet".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (su sach)) ty nang xa hoi. lieu va cham ((cuc va) or (cuu va)) thanh vai cua triet*.