Perhaps you should try some spelling variations:
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
hieu he » hieu ve, hiem he, hieu le
thu nam » thu nhap, thu nhat, thu ngan
sai cua » dai cua, hai cua, bai cua
lai cua » dai cua, hai cua, lai chau
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
he nam » ha nam, nghe nam
tu nam » su nam

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang ma hoi. hieu he nam ((thu nam) OR (tu nam)) dan ((sai cua) or (lai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ma hoi. hieu he nam ((thu nam) OR (tu nam)) dan ((sai cua) OR (lai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ma hoi. hieu he nam ((thu nam) OR (tu nam)) dan ((sai cua) or (lai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ma hoi. hieu he nam ((thu nam) OR (tu nam)) dan ((sai cua) or (lai cua)) tre*.