Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bac van cu snippets" » "bach van cu snippets", "cac van cu snippets", "ban van cu snippets", "bac van cau snippets", "bac van chu snippets", "bac van 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: (((("bac van cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bac van cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bac van cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bac van cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.