Perhaps you should try some spelling variations:
trinh viet » ninh viet, trinh vat
thuoc vien » thuoc viet, thuoc phien, hoc vien
trinh thi » trinh tai, dinh thi, trinh tu
nha thuoc » nha nuoc, nhan thuc, nha hoc
vien nhan » vien than, trien nhan, vien nganh
qua dinh » qua kinh, quy dinh, qua danh
dinh cua » dinh cuu, sinh cua, dinh cu
viet nha » viet nhat, viet ha, viec nha

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

• Performing a fuzzy search may retrieve terms with similar spellings: giao ((((trinh thiet) OR (trinh viet))) or (trinh thi)) qua dinh cua nguoi viet nha thuoc vien nhan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: giao ((((trinh thiet) OR (trinh viet))) OR (trinh thi)) qua dinh cua nguoi viet nha thuoc vien nhan.
• The words AND, OR and NOT may confuse the search; try adding quotes: "giao ((((trinh thiet) OR (trinh viet))) or (trinh thi)) qua dinh cua nguoi viet nha thuoc vien nhan".
• Adding a wildcard symbol may retrieve word variants: giao ((((trinh thiet) OR (trinh viet))) or (trinh thi)) qua dinh cua nguoi viet nha thuoc vien nhan*.