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
vu cham » va cham, vu kham, tu cham
lai cua » dai cua, hai cua, lai chau
soc van » hoc van, oc van, sac van
sach tu » sach thu, cach tu, sach ty
nang xa » nang x, lang xa, nang ma
ve cham » va cham, ve chat, ve chim

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 tu) or (sach y)) nang xa hoi. hieu ((ve cham) OR (vu cham)) soc van hanh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tu) OR (sach y)) nang xa hoi. hieu ((ve cham) OR (vu cham)) soc van hanh lai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach tu) or (sach y)) nang xa hoi. hieu ((ve cham) OR (vu cham)) soc van hanh lai cua triet*".