Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu thanh he snippets" » "thu thang he snippets", "tu thanh he snippets", "thuan thanh he snippets", "thu thanh hue snippets", "thu thanh ha snippets", "thu thanh ve 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 thanh he 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 thanh he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu thanh he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu thanh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.