Perhaps you should try some spelling variations:
hanh dong » anh dong, ha dong
canh ngon » danh ngon
dong khi » duong khi, cong khi, dong thi
hoc canh » hoc can, hoc hanh, hoc cach
ngon lua » nguong lua, nguon luc, ngo cua
hoc anh » hoc nganh, hoc nhanh, ngoc anh
hoc cac » hoc cao
lua khi » luan chi, qua khai, suat khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((hoc anh) or (hoc cac)) hanh dong khi đong luc ) or ( hoc canh ngon lua khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((hoc anh) OR (hoc cac)) hanh dong khi đong luc ) OR ( hoc canh ngon lua khi đong luc )).
• Adding a wildcard symbol may retrieve word variants: (( ((hoc anh) or (hoc cac)) hanh dong khi đong luc ) or ( hoc canh ngon lua khi đong luc ))*.