Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
vu kham » vu khanh
lai cua » dai cua, hai cua, lai chau
duc van » duc va, duc tan, duc manh
ve cham » va cham, ve chat, vu cham
sang ma » tang ma, nang ma, sang tao
so sach » so sanh, bo sach, co sach
cua tuc » cua duc, cua tu, cua thuoc
ma hoi » mai hoi, xa hoi, ma hoa
y sang » _ sang, duy sang

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) or (so sach)) y sang ma hoi. hieu ((ve cham) or (vu kham)) duc van hanh lai cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (so sach)) y sang ma hoi. hieu ((ve cham) OR (vu kham)) duc van hanh lai cua tuc.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (so sach)) y sang ma hoi. hieu ((ve cham) or (vu kham)) duc van hanh lai cua tuc*.