Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tac dan cua snippets" » "tac dan code snippets", "tac danh cua snippets", "cac dan cua snippets", "tac da cua snippets", "tac dan ca snippets", "tac ban cua snippets", "tac dai cua snippets"
"python using java snippets" » "python using data 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: (((("python using java snippets") or ("tac dan cua snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("tac dan cua snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( tac dan cua snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("tac dan cua snippets"))) or ("locating bug core snippets"))*.