Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
pham duy » pham duc
cham duc » pham duc, cham soc, phan duc
va hanh » van hanh, va thanh, va danh
sach ty » sach tu, sach thu, xach tay
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
vi va » vi van, vai va, vu va

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