Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu 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
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach thu nang xa hoi. hieu ((va cam) or (ve cham)) xuc ((va hanh) or (ban thanh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thu nang xa hoi. hieu ((va cam) OR (ve cham)) xuc ((va hanh) OR (ban thanh)) vi cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach thu nang xa hoi. hieu ((va cam) or (ve cham)) xuc ((va hanh) or (ban thanh)) vi cua triet*.