Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han lieu so snippets" » "han dieu so snippets", "dan lieu so snippets", "han tieu so snippets", "han hieu so snippets", "han thieu so snippets", "han lieu 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: (((("han lieu 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: (((("han lieu so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han lieu so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han lieu so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.