Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
hanh cua » manh cua, hang cua, hanh sua
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
ve chat » va chat, van chat
luc van » luoc van, luu van, duc van
cua cua » cua chua, ca cua, qua cua
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: so sach ky nang xa hoi. hieu ((ve cam) or (ve chat)) luc van hanh cua cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang xa hoi. hieu ((ve cam) OR (ve chat)) luc van hanh cua cua triet.
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. hieu ((ve cam) or (ve chat)) luc van hanh cua cua triet*.