Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
te sach » toc sach
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, co hoi, cao hoc
hieu ve » hieu va, hieu van
cac tuc » cac toc, cac tu, cac tac
dan cua » ban cua, dai cua, day cua
ve cac » va cac, vien cac

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 ky nang cao hoi. hieu ve cac tuc xa ((dan cua) OR (dan ca)) cau tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang cao hoi. hieu ve cac tuc xa ((dan cua) OR (dan ca)) cau tren".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang cao hoi. hieu ve cac tuc xa ((dan cua) OR (dan ca)) cau tren*.