Perhaps you should try some spelling variations:
bieu vien » bieu hien, bieu dien, dieu kien
bach duoc » bach tuoc, sach duoc, ban duoc
va thanh » gia thanh, ban thanh, va tinh
nhoa cua » nha cua, khoa cua, nghia cua
ky lang » ky dang, ky tang, tay lang
duoc va » nuoc va, duc va, duoc ma
hoa cua » hoa chat, hoa xuat
tu ban » thu ban, te ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ban ((ky lang) OR (ky nang)) xa hoi. bieu vien bach duoc va thanh ((hoa cua) or (nhoa cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ban ((ky lang) OR (ky nang)) xa hoi. bieu vien bach duoc va thanh ((hoa cua) OR (nhoa cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ban ((ky lang) OR (ky nang)) xa hoi. bieu vien bach duoc va thanh ((hoa cua) or (nhoa cua)) tre".
• Adding a wildcard symbol may retrieve word variants: tu ban ((ky lang) OR (ky nang)) xa hoi. bieu vien bach duoc va thanh ((hoa cua) or (nhoa cua)) tre*.