Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"theo do van snippets" » "theo doi van snippets", "theo don van snippets", "theo bo van snippets", "theo dao van snippets", "theo vo van snippets", "theo so van snippets", "theo do van slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("theo do van snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("theo do van snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( theo do van snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("theo do van snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.