Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu duc code snippets" » "thu duc cong snippets", "thu duc con snippets", "thu bug code snippets", "thu tuc code snippets", "tho duc code snippets", "thu muc code snippets"
"locating bug core snippets" » "locating bug code snippets"

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 ("thu duc code snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python using java snippets\") OR (\"thu duc code snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( thu duc code snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("thu duc code snippets"))) OR ("locating bug core snippets"))*.