Perhaps you should try some spelling variations:
quan cauc » quan chuc, quan cua, quan chu
quan cau » quang cao, toan cau, quan ha
tan hanh » tan thanh, tang hanh, toan hanh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hanh di » hanh vi, hanh de, hang di
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky lang xa hoi. hieu ((quan cau) or (quan cauc)) duc tan hanh di cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky lang xa hoi. hieu ((quan cau) OR (quan cauc)) duc tan hanh di cua vat.
• Adding a wildcard symbol may retrieve word variants: tu san ky lang xa hoi. hieu ((quan cau) or (quan cauc)) duc tan hanh di cua vat*.