Perhaps you should try some spelling variations:
van chat » cao chat
chat xuc » chat huu, cam xuc, chao xu
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
dan vai » dan va, dan tai, dan vat
cam dan » cac dan, ca dan, nam dan
xuc cam » phuc cam
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
cua tu » cua tuc, cua su, cua cu
o hoi » co hoi, o hoc, o hai
x hoi » xa hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang ((x hoi) OR (o hoi)). hieu van chat xuc cam dan vai ((cua tre) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((x hoi) OR (o hoi)). hieu van chat xuc cam dan vai ((cua tre) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang ((x hoi) OR (o hoi)). hieu van chat xuc cam dan vai ((cua tre) or (cua tu))".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ((x hoi) OR (o hoi)). hieu van chat xuc cam dan vai ((cua tre) or (cua tu))*.