Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
thuc day » thuc dan, thuc vat
danh ve » dinh ve, hanh ve, anh ve
ve cac » va cac, vien cac
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va
ve cam » ve cham, va cam, ve cai
te sac » te sach, te cac, te san
x hoi » xa hoi, o hoi, x ho
ve su » va su

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang x hoi. hieu ((ve cam) OR (ve cac)) ((xuc va) or (thuc day)) danh ve su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang x hoi. hieu ((ve cam) OR (ve cac)) ((xuc va) OR (thuc day)) danh ve su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang x hoi. hieu ((ve cam) OR (ve cac)) ((xuc va) or (thuc day)) danh ve su triet*".