Perhaps you should try some spelling variations:
sach kem » hanh kem
va thanh » gia thanh, ban thanh, va tinh
thanh de » hanh de, thanh ve, thanh do
va trien » va truyen, va tuyen, va tieng
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
qua cam » qua cham, qua cac, qua ca
xuc va » duc va, tuc va, luc va
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach kem) or (sach ty)) lang xa hoi. hieu qua cam xuc va thanh de ((va trien) OR (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach kem) OR (sach ty)) lang xa hoi. hieu qua cam xuc va thanh de ((va trien) OR (va thiet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach kem) or (sach ty)) lang xa hoi. hieu qua cam xuc va thanh de ((va trien) OR (va thiet))".
• Adding a wildcard symbol may retrieve word variants: te ((sach kem) or (sach ty)) lang xa hoi. hieu qua cam xuc va thanh de ((va trien) OR (va thiet))*.