Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh oai
thanh tai » thanh hai, thanh toan, doanh tai
nhan luc » nang luc
cua tre » cuu tre, cua triet, dua tren
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
va nhan » van nhan, ca nhan, va phan
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
luc va » duc va, tuc va, loc va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang ma hoa. hieu va nhan luc va ((thanh vai) or (thanh tai)) ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ma hoa. hieu va nhan luc va ((thanh vai) OR (thanh tai)) ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ma hoa. hieu va nhan luc va ((thanh vai) or (thanh tai)) ((cua tre) or (cua te))*.