Perhaps you should try some spelling variations:
te sach » toc sach
thi van » thi lan, thi hanh, thi nang
va tinh » may tinh
cau duc » cao duc, cau luc, chu duc
sach ty » sach y, sach tu, sach thu
van cau » van dau, van hau, van chat
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
vi cuu » vinh cuu
vi luu » vi lua

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 ((nang xa) or (lang xa)) hoi. thi van cau duc va tinh ((vi cuu) or (vi luu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang xa) OR (lang xa)) hoi. thi van cau duc va tinh ((vi cuu) OR (vi luu)) tre.
• Adding a wildcard symbol may retrieve word variants: te sach ty ((nang xa) or (lang xa)) hoi. thi van cau duc va tinh ((vi cuu) or (vi luu)) tre*.