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