Perhaps you should try some spelling variations:
van phuong » van phong, va phuong, van chuong
phuong dan » phuong danh, phuong doan, huong dan
hien manh » hien hanh, hieu manh, hien nhanh
tien manh » tien anh, tien thanh, tieng anh
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cua van » cua ban, cua vat, cua dan

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 manh) or (tien manh)) - anh tang cua van phuong dan ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien manh) OR (tien manh)) - anh tang cua van phuong dan ((toan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((hien manh) or (tien manh)) - anh tang cua van phuong dan ((toan ban) or (van ban))*.