Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
thien hach » thien thanh, hien hanh
hoc thien » hoc hien, hoc thieu, hoc thiet
tuong van » truong van, trong van, duong van
tranh va » tranh van, trang va, trinh va
toan tai » toan tap, doanh tai, toan cao
toan ban » van 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 - canh tranh va nhung tuong van ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - canh tranh va nhung tuong van ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - canh tranh va nhung tuong van ((toan tai) or (toan ban))*.