Perhaps you should try some spelling variations:
sach tham » sach nha
manh hanh » xanh hanh, danh thanh, minh thanh
su triet » su viet, su tien, ve triet
hanh lam » thanh lap, hanh kem, hanh va
duc manh » suc manh, duc anh, duc minh
cham duc » pham duc, cham soc, pham duy
va cham » va chat, va tham
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
lam su » lai su, lam so, lam vu

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