Perhaps you should try some spelling variations:
tang lai » trang lai, tang tai, mang lai
tang loi » thang loi, hang loi, thanh loi
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
va hanh » van hanh, va thanh, va danh
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo
van ho » van hoa, van hoc, van hoe
ho duc » hoc duc, do duc, hong duc

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky ((tang lai) or (tang loi)) hoi. hieu van ho duc va hanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky ((tang lai) OR (tang loi)) hoi. hieu van ho duc va hanh vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu cac ky ((tang lai) or (tang loi)) hoi. hieu van ho duc va hanh vai cuu tre*.