Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi han cho snippets" » "thi hanh cho snippets", "thi hang cho snippets", "thi hoan cho snippets", "thi han che snippets", "thi san 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 han 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 han cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi han cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi han cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.