Perhaps you should try some spelling variations:
trinh vat » trinh van, trinh luat, sinh vat
va trinh » van trinh, va tinh, lap trinh
chang xu » chang xue, chao xu, thong xu
te sach » toc sach
sach ty » sach y, sach tu, sach thu
vat cua » mat cua, bat cua, dat cua
ve cam » ve cham, ve cac, va cam
hang x » nang x, hoang xa, hang nxb
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((hang x) OR (chang xu)) ho. hieu ((ve cam) OR (va cac)) duc va trinh vat cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((hang x) OR (chang xu)) ho. hieu ((ve cam) or (va cac)) duc va trinh vat cua te~".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((hang x) OR (chang xu)) ho. hieu ((ve cam) or (va cac)) duc va trinh vat cua te*.