Perhaps you should try some spelling variations:
khong trong » khoang trong, thong trong, phong trong
thien hach » thien thanh, hien hanh
hoc thien » hoc hien, hoc thieu, hoc thiet
lanh manh » lanh tranh, lan anh, van manh
cua khong » hua khong, cua phuong, cua thuong
trong lan » trong san, trong lam, trong tan
lan tuan » van tuan, lan guan, tran tuan
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien hach - ((lanh manh) or (hoang minh)) cua khong trong lan tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - ((lanh manh) OR (hoang minh)) cua khong trong lan tuan ban.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - ((lanh manh) or (hoang minh)) cua khong trong lan tuan ban*.