Perhaps you should try some spelling variations:
nang chat » nang phat, nang cham, nang cao
hanh thai » nhanh thai, hinh thai, hanh tai
chat hoa » thuat hoa, chat va, chat huu
tu sach » thu sach, su sach, te sach
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
thuc va » thuc vat, thuc dan, thuc day
thai va » thai van
y nang » ky nang, ly nang, v nang
tuc va » truc va, tuc xa, duc va
thiet » thieu

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 y nang chat hoa. hieu vu cham ((tuc va) or (thuc va)) hanh thai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang chat hoa. hieu vu cham ((tuc va) OR (thuc va)) hanh thai va thiet.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang chat hoa. hieu vu cham ((tuc va) or (thuc va)) hanh thai va thiet*.