Perhaps you should try some spelling variations:
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
anh thai » anh thi, anh tai, tranh thai
sach thu » sach thue, sach thieu, sach tham
dang xay » dang van, van xay
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
sach ty » sach y, sach tu, xach tay
xay hoi » xa hoi, tay hoi, cay phoi
soc va » hoc va, loc va, doc 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 thu)) dang xay hoi. hieu vu cham soc va ((anh thai) or (nhanh thai)) cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach thu)) dang xay hoi. hieu vu cham soc va ((anh thai) OR (nhanh thai)) cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach thu)) dang xay hoi. hieu vu cham soc va ((anh thai) or (nhanh thai)) cua tu".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) OR (sach thu)) dang xay hoi. hieu vu cham soc va ((anh thai) or (nhanh thai)) cua tu*.