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