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