Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc vinh cho snippets" » "hoc sinh cho snippets", "hoc kinh cho snippets", "hoc chinh cho snippets", "hoc tinh cho snippets", "hoc minh 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: (((("hoc vinh 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: (((("hoc vinh cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc vinh cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc vinh cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.