Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hoc duoc dai snippets" » "hoc nuoc dai snippets", "hoa duoc dai snippets", "hoc dung dai snippets", "hoc duc dai snippets", "hoc luoc dai snippets", "hoc duoc dan snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("hoc duoc dai snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"hoc duoc dai snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( hoc duoc dai snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc duoc dai snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.