Perhaps you should try some spelling variations:
cua tren » dua tren, ca tren, cua tre
thanh te » thanh ve, thanh de, thanh le
thi nang » thi cong, ki nang, thi hanh
sach ty » sach y, sach tu, sach thu
soc gia » toc gia, hoc gia, so gia
thi van » thi lan, thi hanh
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
lang xa » lang ha, dang xay, lang van
te cua » tue cua, le cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty ((lang xa) or (nang ma)) hoi. ((thi van) OR (thi nang)) cham soc gia thanh te cua tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((lang xa) OR (nang ma)) hoi. ((thi van) OR (thi nang)) cham soc gia thanh te cua tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((lang xa) or (nang ma)) hoi. ((thi van) OR (thi nang)) cham soc gia thanh te cua tren*".