Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi phap cho snippets" » "thi phap cho snippets", "chi phan cho snippets", "che phap cho snippets", "chi phap che snippets", "chi phap chu snippets", "chi phap chong 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: (((("chi phap cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi phap cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi phap cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi phap cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.