Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"soat tin hoc snippets" » "hoat tinh hoc snippets", "toan tin hoc snippets", "so tin hoc snippets", "soat sinh hoc 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: (((("soat tin hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("soat tin hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( soat tin hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("soat tin hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.