Perhaps you should try some spelling variations:
"huy hoc cong snippets" » "huy hoc code snippets", "huy hoc co snippets", "huy cac cong snippets", "huy hoc dung snippets", "huyet hoc cong snippets", "huy thuoc cong snippets", "huy khoa cong snippets"
"locating bug core snippets" » "locating bug code 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 ("huy hoc cong snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("huy hoc cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( huy hoc cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("huy hoc cong snippets"))) or ("locating bug core snippets"))*.