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