Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang tai toi snippets" » "hang va toi snippets", "dung tai toi snippets", "hang tai thi snippets", "hang tai hoi snippets", "hang tai loi 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: (((("hang tai 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: (((("hang tai toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang tai toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang tai toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.