Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu thuoc da snippets" » "tu thuoc da snippets", "thu thuc da snippets", "tru thuoc da snippets", "thu thuoc dac snippets", "thu thuoc ma snippets", "thu thuoc va 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 thuoc da 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 thuoc da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu thuoc da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu thuoc da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.