Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
va thanh » gia thanh, ban thanh, va tinh
cham luc » cham soc, nhan luc, cham cuu
tai duc » tai cuc, mai duc, tai du
va cham » va chat, va tham
hieu va » lieu va, hieu qua
duc tre » duoc tren, duc tien
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 cham luc va thanh tai duc 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 cham luc va thanh tai duc tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sai ky)) ((lang xa) or (nang x)) hoi. hieu va cham luc va thanh tai duc tre*.