Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"him lam tan snippets" » "tim lam tan snippets", "nhom lam tan snippets", "diem lam tan snippets", "him lam san snippets", "him lam tai snippets", "him nam tan snippets", "him lam tan slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("him lam tan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("him lam tan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( him lam tan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("him lam tan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.