Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra ha dong snippets" » "tra hoat dong snippets", "tra van dong snippets", "tra chat dong snippets", "tran hai dong snippets", "trang ha dong 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: (((("tra ha dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tra ha dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra ha dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra ha dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.