Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi hien voi snippets" » "thi lien voi snippets", "thi huyen voi snippets", "thi hue voi snippets", "thi nhien voi snippets", "thi hien vi snippets", "thi dien voi 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 hien voi 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 hien voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi hien voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi hien voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.