Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chuong ve co snippets" » "chung ve co snippets", "cuong ve co snippets", "chuong v co snippets", "chuong vo co snippets", "chuong va co snippets", "chuong de co 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: (((("chuong ve co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chuong ve co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chuong ve co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chuong ve co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.