Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tren que doi snippets" » "trien quy doi snippets", "trong que doi snippets", "thon que doi snippets", "tren que di snippets", "tren que toi snippets", "tren quan doi 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 que doi 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 que doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tren que doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tren que doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.