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