Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh lai » hanh lam, hanh tai, thanh lap
van hanh » van thanh, ban hanh, van anh
sach ty » sach y, sach tu, sach thu
lai cua » dai cua, hai cua, lai chau
va cham » va chat, va tham
vu sach » vu bach, su sach, vu khach
ve cham » ve chat, vu cham, ve chim
ty nang » ky nang, ty xang, ty hang
xu van » tu van, vu van, su van
x hoi » xa hoi, o hoi, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ty nang ((x hoi) or (x ho)). hieu ((ve cham) OR (va cham)) xu van hanh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty nang ((x hoi) OR (x ho)). hieu ((ve cham) OR (va cham)) xu van hanh lai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty nang ((x hoi) or (x ho)). hieu ((ve cham) OR (va cham)) xu van hanh lai cua triet".
• Adding a wildcard symbol may retrieve word variants: vu sach ty nang ((x hoi) or (x ho)). hieu ((ve cham) OR (va cham)) xu van hanh lai cua triet*.