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