Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam tinh doi snippets" » "may tinh doi snippets", "ha tinh doi snippets", "ban tinh doi snippets", "lam trinh doc snippets", "lam trinh do snippets", "lam tinh hoc 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: (((("lam tinh doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lam tinh doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam tinh doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam tinh doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.