Perhaps you should try some spelling variations:
tham luu » tam luu, thanh luu, cham cuu
ban hanh » ban hang
hanh vai » hanh vi, hanh va, hanh tai
su triet » su viet, su tien, ve triet
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
luu ban » luu bang, luu van, luu dan
vai su » va su, van su, lai su

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky ((nang xa) or (nang ma)) hoi. hieu va tham luu ban hanh vai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky ((nang xa) OR (nang ma)) hoi. hieu va tham luu ban hanh vai su triet.
• Adding a wildcard symbol may retrieve word variants: tu cac ky ((nang xa) or (nang ma)) hoi. hieu va tham luu ban hanh vai su triet*.