Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang hanh he snippets" » "nang thanh he snippets", "dang hanh he snippets", "nang hang he snippets", "nang hanh che snippets", "nang hanh ve snippets", "nang hanh de 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: (((("nang hanh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang hanh he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang hanh he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang hanh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.