Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran thu gom snippets" » "tran thuy gom snippets", "tran thi gom snippets", "tuan thu gom snippets", "tran thuat gom 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 thu gom 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 thu gom snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran thu gom snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran thu gom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.