Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cau tra du snippets" » "ca tra du snippets", "cau ra du snippets", "cau truc du snippets", "cau tra tu snippets", "cau tran duc snippets", "cau 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: (((("cau 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: (((("cau tra du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau tra du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau tra du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.