Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc tieng » hoc hien
nang cong » nang song, dang cong, bang cong
hoc tien » hoc hien, hoc vien, hoc tren
trinh va » trinh van, trinh vat, trinh ve
tan chan » ban chan, can chan, tam chan
dan chan » dan gian, dan ca, van chat
va nang » van nang, da nang, cam nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc tien) or (hoc tieng)) anh - hanh trinh va nang cong ((tan chan) or (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc tien) OR (hoc tieng)) anh - hanh trinh va nang cong ((tan chan) OR (dan chan)) cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc tien) or (hoc tieng)) anh - hanh trinh va nang cong ((tan chan) or (dan chan)) cau*.