Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi phi cho snippets" » "chi phi cho snippets", "phi phi cho snippets", "thi phu cho snippets", "thi choi cho snippets", "thi nhoi cho snippets", "thi phap cho 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: (((("thi phi 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: (((("thi phi cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi phi cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi phi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.