Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi hong tre snippets" » "thi cong tre snippets", "thi phuong tre snippets", "thi hanh tre snippets", "thi thong tren snippets", "thi thong treo snippets", "thi phong tri 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: (((("thi hong tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi hong tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi hong tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi hong tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.