Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
cham duc » pham duc, pham duy, phan duc
sach duy » sach dung, sach duoc, sach dao
tu sach » thu sach, su sach, te sach
lai cua » dai cua, hai cua, lai chau
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
duy anh » duc anh, duy khanh, thuy anh
mai hoi » mai khoi, dai hoi, lai hoi
ma hoi » xa hoi, ma hoa, me hoi
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 duy anh ((ma hoi) OR (mai hoi)). hieu va ((cham duc) or (cham soc)) va hanh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach duy anh ((ma hoi) OR (mai hoi)). hieu va ((cham duc) OR (cham soc)) va hanh lai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach duy anh ((ma hoi) OR (mai hoi)). hieu va ((cham duc) or (cham soc)) va hanh lai cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach duy anh ((ma hoi) OR (mai hoi)). hieu va ((cham duc) or (cham soc)) va hanh lai cua te*.