Perhaps you should try some spelling variations:
trinh khong » tinh khong, trinh khung, thinh khong
hanh trinh » canh tranh, hanh chinh
nganh cong » nhanh chong, thanh cong
khong thai » hong thai, khong phai, thong thai
nuoc sach » nguoi sach, hoc sach, cuoc cach
cong khi » cong thai, khong khi, co khi
thu hanh » thuc hanh, thu thanh, thuy hanh
hoc cac » hoc cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((nuoc sach) or (hoc cac)) nganh cong khi đong luc ) or ( thu hanh trinh khong thai đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((nuoc sach) OR (hoc cac)) nganh cong khi đong luc ) OR ( thu hanh trinh khong thai đong luc )).
• Adding a wildcard symbol may retrieve word variants: (( ((nuoc sach) or (hoc cac)) nganh cong khi đong luc ) or ( thu hanh trinh khong thai đong luc ))*.