Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu thanh so snippets" » "cuu thanh so snippets", "cho thanh so snippets", "thu thanh so snippets", "chu thanh son snippets", "chu thanh do snippets", "chu than so 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: (((("chu thanh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu thanh so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu thanh so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu thanh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.