Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc lieu che snippets" » "hoc dieu che snippets", "hoc sieu che snippets", "hoc tieu che snippets", "hoc lieu nhe snippets", "hoc lieu chiu 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: (((("hoc lieu che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc lieu che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc lieu che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc lieu che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.