Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gian van toi snippets" » "giang van toi snippets", "gian dan toi snippets", "gian lan toi snippets", "gian van tai snippets", "gian van thi snippets", "gian van toan 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: (((("gian van toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("gian van toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gian van toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gian van toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.