Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khao nhat de snippets" » "khao nhanh de snippets", "khao sat de snippets", "pham nhat de snippets", "khao nhat ve snippets", "khao nhat le snippets", "khao chat deo 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: (((("khao nhat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khao nhat de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khao nhat de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khao nhat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.