Perhaps you should try some spelling variations:
te sach » toc sach
thi van » thi lan, thi hanh, thi nang
va danh » va dinh, va dan, va hanh
cam duc » cam xuc, cao duc, pham duc
sach ty » sach y, sach tu, sach thu
van cam » van nam, van lam, van cau
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 cam duc va danh ((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 cam duc va danh ((vi cuu) OR (vi luu)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((nang xa) OR (lang xa)) hoi. thi van cam duc va danh ((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 cam duc va danh ((vi cuu) or (vi luu)) tre*.