Perhaps you should try some spelling variations:
doc sach » hoc sach, toc sach, nuoc sach
hanh tai » thanh tai, han tai, hinh tai
hang tai » hang va, dung tai
nang xa » nang x, lang xa, nang ma
qua cam » qua cham, qua cac, qua ca
y nang » ky nang, ly nang, v nang
xuc xa » tuc xa, buc xa
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sach y nang xa hoi. hieu qua cam xuc xa ((hanh tai) or (hang tai)) ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach y nang xa hoi. hieu qua cam xuc xa ((hanh tai) OR (hang tai)) ((cua te) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: doc sach y nang xa hoi. hieu qua cam xuc xa ((hanh tai) or (hang tai)) ((cua te) or (cua tu))*.