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