Perhaps you should try some spelling variations:
thieu nang » thien nang, thieu khang, thieu quang
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
cac xuc » cam xuc, cac nuoc, chat xuc
vai cua » dai cua, hai cua, lai cua
va hanh » va thanh, va danh, ban hanh
tu sach » thu sach, su sach, tu cach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
te sach » toc sach
ve cac » va cac, vien cac

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 (te sach)) thieu nang xa hoi. hieu ve cac xuc ((va hanh) or (van hanh)) vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) thieu nang xa hoi. hieu ve cac xuc ((va hanh) OR (van hanh)) vai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) thieu nang xa hoi. hieu ve cac xuc ((va hanh) or (van hanh)) vai cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (te sach)) thieu nang xa hoi. hieu ve cac xuc ((va hanh) or (van hanh)) vai cua triet*.