Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cua triet » cua viet, su triet, va triet
vien cac » vien bach, vien dai, vien da
hanh vai » hanh vi, hanh va, hanh tai
lo nang » ho nang, ly nang, loai nang
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
sach lo » sach dao, sach doi, sach hoi
luc va » duc va, tuc va, loc va
ve cac » va cac
ve cau » ke cau, va cau, le cau
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach lo nang x hoi. hieu ((ve cau) or (((ve cac) OR (vien cac)))) luc va hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach lo nang x hoi. hieu ((ve cau) OR (((ve cac) OR (vien cac)))) luc va hanh vai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach lo nang x hoi. hieu ((ve cau) or (((ve cac) OR (vien cac)))) luc va hanh vai cua triet*".