Perhaps you should try some spelling variations:
manh pham » minh pham, thanh pham, khanh pham
hieu van » thien van, lieu va, hieu ve
luc manh » luc canh, suc manh, duc manh
pham tai » pham thi, pham van
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cau luc » cau truc, cau phuc
cuc tu » cuc du, luc tu, duc tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky ((nang xa) or (lang xa)) hoi. ((hieu van) or (hieu va)) cau luc manh pham tai cuc tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((nang xa) OR (lang xa)) hoi. ((hieu van) OR (hieu va)) cau luc manh pham tai cuc tu.
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((nang xa) or (lang xa)) hoi. ((hieu van) or (hieu va)) cau luc manh pham tai cuc tu*.