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