Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tren tu chon snippets" » "tren tau chon snippets", "tran tu chon snippets", "tre tu chon snippets", "tren tu choi snippets", "tren tu hon snippets", "tren lua chon 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: (((("tren tu chon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tren tu chon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tren tu chon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tren tu chon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.