Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh ve he snippets" » "hanh vi he snippets", "hanh va he snippets", "hanh kem he snippets", "hanh ve che snippets", "hanh ve khe snippets", "hanh ke he 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: (((("hanh ve 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: (((("hanh ve he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh ve he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh ve he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.