Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bua hang du snippets" » "cua hang du snippets", "bua sang du snippets", "mua hang du snippets", "bua hang dau snippets", "bua hoang du snippets", "bua nang du 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: (((("bua hang 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: (((("bua hang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bua hang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bua hang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.