Perhaps you should try some spelling variations:
te sach » toc sach
doi cua » dai cua, hoi cua, dong cua
va hanh » van hanh, va thanh, va danh
cam luc » cam xuc, cau luc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
luc va » duc va, tuc va, loc va
de cua » le cua, te cua, dieu cua
ve cam » ve cham, ve cac, va cam

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 y ((nang xa) or (nang ma)) hoi. hieu ve cam luc va hanh ((de cua) or (doi cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((nang xa) OR (nang ma)) hoi. hieu ve cam luc va hanh ((de cua) OR (doi cua)) tre.
• Adding a wildcard symbol may retrieve word variants: te sach y ((nang xa) or (nang ma)) hoi. hieu ve cam luc va hanh ((de cua) or (doi cua)) tre*.