Perhaps you should try some spelling variations:
xanh hanh » danh thanh, ban hanh, van hanh
thuc xanh » thuc hanh, thuc thanh, thuc dan
cam thuc » am thuc, nam thuc, cam thu
hieu va » lieu va, hieu qua
hieu ve » hieu van
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
vi cua » vai cua
di cua » dai cua, doi cua, de cua
su sac » su sach, su cac, su xac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky lang xa hoi. ((hieu ve) OR (hieu va)) cam thuc xanh hanh ((vi cua) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky lang xa hoi. ((hieu ve) OR (hieu va)) cam thuc xanh hanh ((vi cua) OR (di cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky lang xa hoi. ((hieu ve) OR (hieu va)) cam thuc xanh hanh ((vi cua) or (di cua)) tre*".