Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao quang du snippets" » "do quang du snippets", "dat quang du snippets", "dau quang du snippets", "dao quang duc snippets", "dao quang duy snippets", "dao quang cu 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: (((("dao quang 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: (((("dao quang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao quang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao quang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.