Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
phan vien » nhan vien, phan kien, phan tien
phan bien » phan kien, phan tien, phan bon
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach ty
cao luc » bao luc, cao duc, cao suc
va cao » va cac, va co, va dao
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: thuat sach ky ((nang xa) or (nang ma)) hoi. hieu va cao luc va ((phan vien) or (phan bien)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky ((nang xa) OR (nang ma)) hoi. hieu va cao luc va ((phan vien) OR (phan bien)) cua te.
• Adding a wildcard symbol may retrieve word variants: thuat sach ky ((nang xa) or (nang ma)) hoi. hieu va cao luc va ((phan vien) or (phan bien)) cua te*.