Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra du chi snippets" » "tra tu chi snippets", "tran duc chi snippets", "tran duy chi snippets", "tra dau chi snippets", "tra cu chi snippets", "tra di chi 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: (((("tra du chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tra du chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra du chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra du chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.