Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban chan mon snippets" » "dan chan mon snippets", "ban than mon snippets", "ban nhan mon snippets", "ban chan doan snippets", "ban chan hong snippets", "ban nhap mon 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: (((("ban chan mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban chan mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban chan mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban chan mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.