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
cuu tre » cua tre, cau tren, cau treo
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
mai hoi » mai khoi, dai hoi, lai hoi
ma hoi » xa hoi, ma hoa, me hoi
cua su » qua su

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