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