Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dum cua cau snippets" » "dum cua code snippets", "duy cua cau snippets", "dam cua cau snippets", "dung cua cau snippets", "dum chua cau snippets", "dum cua cac snippets", "dum cua chu snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dum cua cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dum cua cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dum cua cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dum cua cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.