Perhaps you should try some spelling variations:
toc sach » hoc sach, thuoc sach, nuoc sach
doc sach » hoc sach, nuoc sach, dac sac
hang tai » hang va, dung tai
hinh tai » chinh tai, hinh thai, hinh bai
cam luc » cam xuc, cau luc
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va
y nang » ky nang, ly nang, v nang
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: ((toc sach) or (doc sach)) y nang xa hoi. hieu va cam luc va ((hinh tai) or (hang tai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (doc sach)) y nang xa hoi. hieu va cam luc va ((hinh tai) OR (hang tai)) cua te.
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (doc sach)) y nang xa hoi. hieu va cam luc va ((hinh tai) or (hang tai)) cua te*.