Perhaps you should try some spelling variations:
vien cua » viec cua, dien cua, tien cua
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach kem
thuc va » thuc vat, thuc dan, thuc day
ve cao » va cao, ve bao, ve cac
tuc va » truc va, tuc xa, duc 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: thu ((sach ky) or (sach ty)) nang xa hoi. hieu ve cao ((tuc va) OR (thuc va)) nhan vien cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ky) OR (sach ty)) nang xa hoi. hieu ve cao ((tuc va) OR (thuc va)) nhan vien cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach ky) or (sach ty)) nang xa hoi. hieu ve cao ((tuc va) OR (thuc va)) nhan vien cua te*".