Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
thai cua » than cua, tai cuc, tri cua
dang xay » dang van, van xay
vu kham » vu khanh
hieu vu » hieu va, hieu ve, hieu su
sach ty » sach y, sach thu, xach tay
xay hoi » xa hoi, tay hoi, cay phoi
sach tu » sach thu, cach tu, sach uu
soc va » loc va, doc va, goc va
cua tu » cua tuc, cua su, cua cu

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 ty) or (sach tu)) dang xay hoi. hieu vu kham ((soc va) or (hoc va)) hanh thai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach tu)) dang xay hoi. hieu vu kham ((soc va) OR (hoc va)) hanh thai cua tu.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sach tu)) dang xay hoi. hieu vu kham ((soc va) or (hoc va)) hanh thai cua tu*.