Perhaps you should try some spelling variations:
trinh viet » trinh vat
ninh viet » sinh vien, anh viet
sach ty » sach y, sach thu, xach tay
sach tu » sach thu, cach tu, sach uu
lang xa » lang ha, dang xay, lang van
qua cam » qua cham, qua cac, qua ca
xuc van » duc van, luc van, vuc van
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ((sach ty) OR (sach tu)) lang xa hoi. hieu qua cam xuc van ((trinh viet) or (ninh viet)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ty) OR (sach tu)) lang xa hoi. hieu qua cam xuc van ((trinh viet) OR (ninh viet)) cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach ty) OR (sach tu)) lang xa hoi. hieu qua cam xuc van ((trinh viet) or (ninh viet)) cua te*".