Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"le quang tue snippets" » "le quang tuan snippets", "le quang huy snippets", "le quang tri snippets", "vu quang tue 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: (((("le quang tue snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("le quang tue snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( le quang tue snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("le quang tue snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.