Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van la chi snippets" » "van lam chi snippets", "van lao chi snippets", "van lan chi snippets", "van ly chi snippets", "van a chi snippets", "van ca chi 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: (((("van la chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van la chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van la chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van la chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.