Perhaps you should try some spelling variations:
nhanh huong » nhanh chuong, thanh huong, nhanh hong
khien tinh » thien tinh, khien thich, bien tinh
duong cong » dung cong, duong trong, trong cong
luong cong » dung cong, trong cong, cong cong
hoc khien » hoc hien, hoc nghien, hoc thieu
huong cua » dung cua
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 khien tinh - nhanh huong cua ((duong cong) or (luong cong)) tinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc khien tinh - nhanh huong cua ((duong cong) OR (luong cong)) tinh toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc khien tinh - nhanh huong cua ((duong cong) or (luong cong)) tinh toan cao*.