Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
tu sach » thu sach, su sach, te sach
lam san » lam sang, lam son, luan san
va lang » va nang, hoa lang
va hang » van hang, va nang, va hanh
cua tre » cua te, cuu tre, cua triet
sach ly » sach y, sach lo, sach ty
lam tan » lam tai, nam tan, lam ban
nang ma » tang ma, sang ma, nang cao
ly nang » ky nang, ly hang, ly vang
ca cua » co cua

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 ly nang ma hoa. hieu viec ((lam tan) OR (lam san)) ((va hang) or (va lang)) ca cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang ma hoa. hieu viec ((lam tan) OR (lam san)) ((va hang) OR (va lang)) ca cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ly nang ma hoa. hieu viec ((lam tan) OR (lam san)) ((va hang) or (va lang)) ca cua tre*".