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 ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
cao suc » cao su, cao duc
ve cao » va cao, ve bao, ve cac
suc va » duc va, tuc va, luc 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 ve cao suc 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 ve cao suc va ((phan vien) OR (phan bien)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky ((nang xa) OR (nang ma)) hoi. hieu ve cao suc 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 ve cao suc va ((phan vien) or (phan bien)) cua te*.