Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hong thu cua snippets" » "hoang thu cua snippets", "phong thu cua snippets", "thong thu cua snippets", "hong thuc cua snippets", "hong hu cua snippets", "hong tu cua 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: (((("hong thu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hong thu cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hong thu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hong thu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.