Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
va thanh » gia thanh, ban thanh, va tinh
nhan luc » nang luc
tai cua » thai cua, tai cuc, tri cua
va nhan » van nhan, ca nhan, va phan
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay, lang van
luc va » duc va, tuc va, loc va
sai ky » sac ky

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) or (sai ky)) ((lang xa) or (nang x)) hoi. hieu va nhan luc va thanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sai ky)) ((lang xa) OR (nang x)) hoi. hieu va nhan luc va thanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sai ky)) ((lang xa) or (nang x)) hoi. hieu va nhan luc va thanh tai cua tre*.