Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
cua triet » cua viet, su triet, va triet
duc manh » suc manh, duc anh, duc minh
sach ky » sach y, sach kem, sach hay
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
sac ky » cac ky, sai ky
vi cua » vai cua, di cua

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 ky) or (sac ky))) or (sach ty)) nang xa hoi. hieu ve pham duc manh hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((((sach ky) OR (sac ky))) OR (sach ty)) nang xa hoi. hieu ve pham duc manh hanh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: tu ((((sach ky) or (sac ky))) or (sach ty)) nang xa hoi. hieu ve pham duc manh hanh vi cua triet*.