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
duc van » duc va, duc tan, duc manh
vu cham » va cham, vu kham, tu cham
tu sach » thu sach, su sach, te sach
hang ca » hang va, nang cao, hang tai
hang xa » hoang xa, hang va, lang xa
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 ty ((hang xa) OR (hang ca)) hoi. hieu ((ve cham) or (vu cham)) duc van hanh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((hang xa) OR (hang ca)) hoi. hieu ((ve cham) OR (vu cham)) duc van hanh lai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty ((hang xa) OR (hang ca)) hoi. hieu ((ve cham) or (vu cham)) duc van hanh lai cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((hang xa) OR (hang ca)) hoi. hieu ((ve cham) or (vu cham)) duc van hanh lai cua triet*.