Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mot tang du snippets" » "mot lang du snippets", "mot nang du snippets", "mot thanh du snippets", "mot hang dau snippets", "mot dang duc 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: (((("mot tang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mot tang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mot tang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mot tang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.