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