Perhaps you should try some spelling variations:
trinh vat » trinh van, trinh luat, sinh vat
tay lang » tai lang, tay tang, tay quang
va trinh » van trinh, va tinh, lap trinh
su sach » so sach, vu sach
vat cua » mat cua, bat cua, dat cua
cua tre » cua te, cuu tre, cua triet
ky dang » ky nang, ky danh
ve coc » ve cuoc, ve cac
tuc va » thuc va, truc va, tuc xa
ve co » vo co, va co, de co

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((tay lang) or (ky dang)) xa hoi. hieu ((ve coc) or (ve co)) tuc va trinh vat cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((tay lang) OR (ky dang)) xa hoi. hieu ((ve coc) OR (ve co)) tuc va trinh vat cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ((tay lang) or (ky dang)) xa hoi. hieu ((ve coc) or (ve co)) tuc va trinh vat cua tre*.