Perhaps you should try some spelling variations:
thanh ha » thanh hoa, thanh hai, nhanh ha
cam thuc » am thuc, nam thuc, cam thu
cua tre » cua te, cuu tre, cua triet
thuc da » thuc dan, thuc day, thuc dia
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
su sac » su sach, su cac
su xac » pu xac, su cac
ve cam » ve cham, ve cac, va cam

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) OR (su xac)) ky nang xa hoi. hieu ve cam thuc da ((thanh ha) or (thanh san)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su xac)) ky nang xa hoi. hieu ve cam thuc da ((thanh ha) OR (thanh san)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su xac)) ky nang xa hoi. hieu ve cam thuc da ((thanh ha) or (thanh san)) cua tre*".