Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong va que snippets" » "dong va que snippets", "cong ha que snippets", "cong tac que snippets", "cong van que snippets", "cong va quy snippets", "cong va qua 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: (((("cong va que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong va que snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong va que snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong va que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.