Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cap hoang du snippets" » "cam hoang du snippets", "cau hoang du snippets", "van hoang du snippets", "cap hoang duy snippets", "cap hoang duc snippets", "cap hoang de 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: (((("cap hoang 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: (((("cap hoang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cap hoang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cap hoang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.