Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach hoc vo snippets" » "cach thuc vo snippets", "cach thoi vo snippets", "dich hoc vo snippets", "cach hoc va snippets", "cach hoc co snippets", "cach hoc vi 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: (((("cach hoc vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach hoc vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach hoc vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach hoc vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.