Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
tu sach » thu sach, su sach, te sach
lai cua » dai cua, hai cua, lai chau
va hanh » van hanh, va thanh, va danh
vu cham » vu kham, tu cham, qua cham
va cham » va chat, va tham
sach ty » sach y, sach tu, sach thu
nang ma » tang ma, nang cao, mang may
sang ma » tang ma, sang tao, mang may
cua te » cua tu

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 ((sang ma) OR (nang ma)) hoi. hieu ((va cham) or (vu cham)) duc va hanh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((sang ma) OR (nang ma)) hoi. hieu ((va cham) OR (vu cham)) duc va hanh lai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty ((sang ma) OR (nang ma)) hoi. hieu ((va cham) or (vu cham)) duc va hanh lai cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((sang ma) OR (nang ma)) hoi. hieu ((va cham) or (vu cham)) duc va hanh lai cua te*.