Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van bo chi snippets" » "van bao chi snippets", "van bon chi snippets", "can bo chi snippets", "van ho chi snippets", "van bo cai 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 bo 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 bo chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van bo chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van bo chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.