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