Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc va con snippets" » "nuoc va con snippets", "duoc va con snippets", "quoc gia con snippets", "quoc va cong snippets", "quoc va co 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 va con 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 va con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc va con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc va con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.