Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, chieu xanh
trieu minh » trieu tinh, trien minh, trien kinh
thanh tung » thanh cong
cua phuong » cuu phuong, cuc phuong, luan phuong
thong tap » thong cap, thong tai, thong lap
tung cua » trung cua, tuong cua, dung cua
tong tap » tuong tac, trong tan, cong tac
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu manh) OR (trieu minh)) - thanh tung cua phuong ((thong tap) or (tong tap)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu manh) OR (trieu minh)) - thanh tung cua phuong ((thong tap) OR (tong tap)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu manh) OR (trieu minh)) - thanh tung cua phuong ((thong tap) or (tong tap)) toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu manh) OR (trieu minh)) - thanh tung cua phuong ((thong tap) or (tong tap)) toan cao*.