Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
hanh vai » hanh vi, hanh va, hanh tai
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
ve cham » va cham, ve chat, vu cham
va cam » va cham, va cac, va cao
ve cam » ve cac, ve cai, ve cau

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