Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
dieu cau » dieu can, diem cau, dieu cam
cham cuu » cap cuu, chat cua
sach ly » sach y, sach ty, sach hay
va dang » van dang, va nang, va lang
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, mang xa
sach lo » sach dao, sach doi, sach hoi
nang ma » tang ma, sang ma, nang cao
cuu va » cuu van, cuu ve

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 ly) or (sach lo)) ((nang xa) or (nang ma)) hoi. hieu ve cham cuu va dang dieu cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ly) OR (sach lo)) ((nang xa) OR (nang ma)) hoi. hieu ve cham cuu va dang dieu cau tren.
• Adding a wildcard symbol may retrieve word variants: vu ((sach ly) or (sach lo)) ((nang xa) or (nang ma)) hoi. hieu ve cham cuu va dang dieu cau tren*.