Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc my cua snippets" » "nuoc my cua snippets", "quoc ky cua snippets", "quoc huy cua snippets", "quoc ly cua snippets", "quoc ma cua 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: (((("quoc my cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quoc my cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc my cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc my cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.