Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xao su cua snippets" » "cao su cua snippets", "vao su cua snippets", "xa su cua snippets", "xao hu cua snippets", "xao tu cua snippets", "xao vu cua snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("xao su cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xao su cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xao su cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xao su cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.