Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
hanh lai » hanh lam, hanh tai, thanh lap
cham duc » pham duc, cham soc, pham duy
thu sach » thuat sach, thuoc sach, thu hoach
xang ma » tang ma, sang ma, rang ma
hieu va » lieu va, hieu qua
va cham » va chat, va tham
tu sach » su sach, te sach, tu cach
va hanh » van hanh, va thanh, va danh
nang ma » tang ma, sang ma, nang cao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (tu sach)) ty ((xang ma) or (nang ma)) hoi. hieu va cham duc va hanh lai chau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ty ((xang ma) OR (nang ma)) hoi. hieu va cham duc va hanh lai chau triet.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (tu sach)) ty ((xang ma) or (nang ma)) hoi. hieu va cham duc va hanh lai chau triet*.