Perhaps you should try some spelling variations:
sach ky » sach y, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va
va dan » ca dan, va dao, va dau
dan va » doan va, dan ca, ban va
va cua » va chua, via cua, ca cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((sach ky) or (sac ky)) nang xa hoi. ((hieu va) or (lieu va)) cam xuc va dan va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((sach ky) OR (sac ky)) nang xa hoi. ((hieu va) OR (lieu va)) cam xuc va dan va cua te.
• Adding a wildcard symbol may retrieve word variants: hoc ((sach ky) or (sac ky)) nang xa hoi. ((hieu va) or (lieu va)) cam xuc va dan va cua te*.