Perhaps you should try some spelling variations:
kham cuu » cham cuu, khao cuu, kham chua
nang xa » nang x, lang xa, nang ma
hieu vu » hieu va, hieu su, dieu vu
hieu ve » hieu va, hieu van
di cua » dai cua, doi cua, de cua
dan di » danh di, dan da, dan de
ke dan » le dan
cuu ke » cuu ve, cuu de, muu ke
sach v » sach va, sach 2, sach vay
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach v) OR (sach y)) nang xa hoi. ((hieu vu) OR (hieu ve)) kham cuu ke dan di cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach v) or (sach y)) nang xa hoi. ((hieu vu) OR (hieu ve)) kham cuu ke dan di cua te~".
• Adding a wildcard symbol may retrieve word variants: te ((sach v) or (sach y)) nang xa hoi. ((hieu vu) OR (hieu ve)) kham cuu ke dan di cua te*.