Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"minh van que snippets" » "dinh van que snippets", "minh va que snippets", "vinh van que snippets", "minh van quy snippets", "minh van due snippets", "minh van hue 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: (((("minh van 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: (((("minh van que snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( minh van que snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("minh van que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.