Perhaps you should try some spelling variations:
trong san » trong cac, cong san, dong san
san thanh » ban thanh, van thanh, son thanh
thanh lap » thanh san, phan lap, thanh hai
hien anh » hien hanh, thien anh, tien anh
dien anh » tieng anh, dien dan
dinh cuu » dinh chi
dinh cua » sinh cua, dinh cu, tinh cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien anh) or (dien anh)) - hanh ((dinh cuu) or (dinh cua)) dung trong san thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien anh) OR (dien anh)) - hanh ((dinh cuu) OR (dinh cua)) dung trong san thanh lap.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien anh) or (dien anh)) - hanh ((dinh cuu) or (dinh cua)) dung trong san thanh lap*.