Perhaps you should try some spelling variations:
may trinh » may tinh, lap trinh, quy trinh
sang tao » hang tai
te sach » toc sach
soc may » hoc may, so may
vu cham » va cham, vu kham, tu cham
sach ty » sach y, sach tu, sach thu
hieu vu » hieu va, hieu ve, hieu su
sang ma » tang ma, nang ma, mang may
ve cua » le cua, de cua, ve cum
te cua » tue cua, le cua, de cua

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 ty ((sang ma) or (sang tao)) hoi. hieu vu cham soc may trinh ((ve cua) OR (te cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((sang ma) OR (sang tao)) hoi. hieu vu cham soc may trinh ((ve cua) OR (te cua)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((sang ma) or (sang tao)) hoi. hieu vu cham soc may trinh ((ve cua) OR (te cua)) tu".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((sang ma) or (sang tao)) hoi. hieu vu cham soc may trinh ((ve cua) OR (te cua)) tu*.